15 Best Keto Casserole Recipes

Casseroles are the ultimate comfort food – warm, cheesy, and satisfying. But following a ketogenic diet often means ditching traditional carb-heavy binders like pasta, rice, or potatoes. The good news? Keto casseroles are not only possible but incredibly delicious and easy to make! Packed with protein, healthy fats, and low-carb vegetables, these one-dish wonders are perfect for busy weeknights, meal prepping, or feeding a crowd.

Whether you're new to keto or a seasoned low-carb pro, finding reliable and tasty recipes is key. For a personalized approach, consider a Custom Keto Diet plan to get started. This collection brings together 15 of the best keto casserole recipes, ranging from classic favorites reimagined to exciting new flavor combinations. Get ready to discover your next go-to comfort meal!

Why Keto Casseroles are a Game-Changer

Before diving into the recipes, let's appreciate why keto casseroles deserve a spot in your meal rotation:

• Convenience: Most casseroles involve minimal hands-on time. You often layer ingredients and let the oven do the work.

• Meal Prep Masters: Casseroles are fantastic for batch cooking. Make one on Sunday, and enjoy leftovers for lunch or dinner throughout the week. Following The Ultimate Keto Meal Plan can also streamline your weekly cooking.

• Family-Friendly: Even picky eaters often enjoy a good casserole. They are generally cheesy, savory, and satisfying for all ages. Having easy options like those found in a Keto Snack Cookbook can also help keep everyone happy between meals.

• Versatile: Easily adaptable! Swap proteins, add different low-carb veggies, or experiment with cheeses.

• Keto-Aligned: Naturally lend themselves to high-fat, moderate-protein, low-carb ingredients like meats, cheeses, creams, and non-starchy vegetables.

• Comfort Food Fix: They deliver that hearty, comforting feeling without the carb load. And for a sweet finish, a Keto Dessert Book can provide guilt-free treats.

Essential Keto Casserole Ingredients

Stocking your pantry and fridge with these keto staples will make whipping up these casseroles a breeze. Understanding the fundamentals from resources like The Keto Diet guide can also be beneficial.

• Proteins: Ground beef, chicken (shredded, diced), sausage, bacon, turkey, eggs.

• Low-Carb Vegetables: Cauliflower (florets, riced), broccoli, zucchini, spinach, mushrooms, bell peppers (in moderation), onions (in moderation), garlic.

• Healthy Fats & Binders: Cheese (cheddar, mozzarella, Parmesan, Monterey Jack, cream cheese), heavy cream, sour cream, eggs, butter, avocado oil, olive oil.

• Flavor Enhancers: Herbs (parsley, cilantro, oregano, basil), spices (cumin, chili powder, paprika, garlic powder, onion powder), salt, pepper, keto-friendly sauces (sugar-free marinara, low-carb salsa).

Now, let's get to the delicious part – the recipes!

The 15 Best Keto Casserole Recipes

Here are 15 tried-and-true keto casserole recipes that are sure to become favorites.

1. Cheesy Chicken Broccoli Casserole

Description: A timeless classic made keto-friendly. Tender chicken and broccoli florets baked in a rich, creamy cheese sauce. It's pure comfort in a dish.
Why Keto? Uses chicken, broccoli, and a cheese-based sauce instead of carb-heavy condensed soups.
Key Ingredients:

• Cooked Chicken (shredded or diced)

• Broccoli Florets (fresh or frozen, steamed)

• Cream Cheese

• Heavy Cream or Chicken Broth

• Cheddar Cheese (shredded)

• Garlic Powder, Onion Powder, Salt, Pepper

Simplified Instructions: Combine steamed broccoli and cooked chicken in a baking dish. In a saucepan, melt cream cheese with heavy cream or broth, stirring until smooth. Mix in half the cheddar cheese and seasonings. Pour sauce over chicken and broccoli, stir gently. Top with remaining cheddar. Bake at 375°F (190°C) for 20-25 minutes, or until bubbly and golden.

Tip: Add crumbled bacon on top for extra flavor and crunch.

2. Keto Ground Beef Taco Casserole

Description: All the flavors of your favorite tacos baked into one easy, cheesy casserole. Perfect for Taco Tuesday or any night you crave Mexican food.
Why Keto? Swaps tortillas for a base of seasoned ground beef and cheese, topped with low-carb taco fixings.
Key Ingredients:

• Ground Beef

• Taco Seasoning (sugar-free)

• Diced Tomatoes with Green Chilies (drained)

• Cream Cheese

• Shredded Mexican Cheese Blend or Cheddar

• Optional Toppings: Sour cream, avocado, sliced olives, jalapeños, cilantro.

Simplified Instructions: Brown ground beef, drain fat. Stir in taco seasoning and diced tomatoes with green chilies. Simmer for a few minutes. Stir in softened cream cheese until melted and combined. Transfer mixture to a baking dish. Top generously with shredded cheese. Bake at 350°F (175°C) for 15-20 minutes, until cheese is melted and bubbly. Serve with your favorite low-carb toppings.

Tip: Layer some crushed pork rinds on the bottom for a "crust" effect before adding the meat mixture.

3. Keto Cheeseburger Casserole

Description: Tastes just like a juicy cheeseburger, but without the bun! A savory ground beef mixture topped with cheese and classic burger fixings.
Why Keto? Focuses on the meat, cheese, and low-carb condiments, eliminating the high-carb bun.
Key Ingredients:

• Ground Beef

• Onion (diced small)

• Garlic (minced)

• Sugar-Free Ketchup

• Mustard

• Dill Pickles (diced)

• Cheddar Cheese (shredded)

• Eggs

• Heavy Cream

Simplified Instructions: Brown ground beef with onion and garlic; drain fat. Stir in ketchup, mustard, and diced pickles. Spread mixture in a baking dish. In a bowl, whisk eggs and heavy cream; season with salt and pepper. Pour egg mixture over the beef. Top generously with shredded cheddar cheese. Bake at 350°F (175°C) for 25-30 minutes, until set and cheese is golden.

Tip: Sprinkle cooked, crumbled bacon over the cheese before baking.

4. Creamy Keto Spinach Artichoke Chicken Casserole

Description: A keto take on the popular dip, turned into a satisfying main course with the addition of chicken. Creamy, cheesy, and loaded with flavor.
Why Keto? Uses keto-friendly ingredients like chicken, spinach, artichoke hearts, cream cheese, and mozzarella, avoiding carb-heavy fillers.
Key Ingredients:

• Cooked Chicken (shredded or diced)

• Frozen Spinach (thawed and squeezed dry)

• Canned Artichoke Hearts (drained and chopped)

• Cream Cheese

• Sour Cream or Mayonnaise

• Garlic (minced)

• Parmesan Cheese (grated)

• Mozzarella Cheese (shredded)

• Salt, Pepper

Simplified Instructions: In a large bowl, combine softened cream cheese, sour cream/mayo, minced garlic, Parmesan cheese, salt, and pepper. Stir in the cooked chicken, drained spinach, and chopped artichoke hearts. Transfer mixture to a baking dish. Top with shredded mozzarella cheese. Bake at 375°F (190°C) for 20-25 minutes, until hot and bubbly.

Tip: Serve with pork rinds or low-carb vegetable sticks for dipping.

5. Keto Sausage and Egg Breakfast Casserole

Description: The perfect make-ahead keto breakfast or brunch dish. Savory sausage, eggs, cheese, and low-carb veggies baked together.
Why Keto? Relies on eggs, sausage, cheese, and veggies, eliminating bread or potatoes found in traditional breakfast casseroles.
Key Ingredients:

• Breakfast Sausage (crumbled and cooked)

• Eggs

• Heavy Cream or Unsweetened Almond Milk

• Cheddar Cheese (shredded)

• Optional Veggies: Diced bell peppers, onions, mushrooms, spinach (sautéed first).

• Salt, Pepper

Simplified Instructions: Grease a baking dish. Spread the cooked sausage evenly on the bottom. Add any sautéed veggies. In a bowl, whisk eggs, cream/milk, salt, and pepper. Stir in half the shredded cheese. Pour the egg mixture over the sausage and veggies. Top with the remaining cheese. Bake at 350°F (175°C) for 30-40 minutes, or until the center is set and the top is golden brown. Let rest for 5-10 minutes before slicing.

Tip: Use different cheeses like Monterey Jack or Gruyere for variety.

6. Keto Zucchini Lasagna Casserole

Description: Craving lasagna? This keto version uses thinly sliced zucchini instead of pasta noodles, layered with rich meat sauce and creamy ricotta cheese.
Why Keto? Replaces high-carb pasta with low-carb zucchini strips.
Key Ingredients:

• Zucchini (thinly sliced lengthwise)

• Ground Beef or Italian Sausage

• Sugar-Free Marinara Sauce

• Ricotta Cheese

• Egg

• Parmesan Cheese (grated)

• Mozzarella Cheese (shredded)

• Italian Seasoning, Garlic Powder, Salt, Pepper

Simplified Instructions: Brown the meat; drain fat. Stir in marinara sauce and seasonings; simmer. Slice zucchini thinly. Pat slices dry with paper towels (this prevents a watery casserole). In a bowl, mix ricotta cheese, egg, and Parmesan cheese. Layer in a baking dish: meat sauce, zucchini slices, ricotta mixture, mozzarella. Repeat layers. End with meat sauce and a generous topping of mozzarella and Parmesan. Bake at 375°F (190°C) for 30-40 minutes, until bubbly and tender. Let rest for 10-15 minutes before serving.

Tip: Salting the zucchini slices and letting them sit for 15-20 minutes before patting dry helps draw out excess moisture.

7. Low-Carb Philly Cheesesteak Casserole

Description: All the savory flavors of a Philly cheesesteak sandwich packed into a low-carb casserole format. Thinly sliced steak (or ground beef), peppers, onions, and lots of melted cheese.
Why Keto? Captures the essence of the cheesesteak without the high-carb bread roll.
Key Ingredients:

• Thinly Sliced Sirloin Steak or Ground Beef

• Green Bell Peppers (sliced)

• Onion (sliced)

• Mushrooms (sliced, optional)

• Provolone Cheese (slices or shredded)

• Cream Cheese

• Beef Broth

• Worcestershire Sauce (check for low sugar)

• Garlic Powder, Salt, Pepper

Simplified Instructions: Sauté onions and peppers (and mushrooms, if using) until tender-crisp. Set aside. Cook the steak or brown the ground beef; drain fat. Stir in beef broth, Worcestershire sauce, garlic powder, salt, and pepper. Add the softened cream cheese and stir until melted and creamy. Return the veggies to the pan and mix everything together. Transfer to a baking dish. Top with provolone cheese slices or shredded provolone. Bake at 375°F (190°C) for 15-20 minutes, until cheese is melted and bubbly.

Tip: For extra richness, stir a bit of heavy cream into the meat mixture along with the cream cheese.

8. Keto Buffalo Chicken Casserole

Description: Spicy, creamy, and cheesy – this casserole brings the flavor of buffalo chicken wings to your dinner table, often served over a base of cauliflower.
Why Keto? Uses keto staples like chicken, buffalo sauce (check labels for sugar), cream cheese, and ranch/blue cheese dressing.
Key Ingredients:

• Cooked Chicken (shredded)

• Cauliflower Florets (steamed or riced cauliflower)

• Cream Cheese

• Hot Sauce (like Frank's RedHot)

• Ranch or Blue Cheese Dressing (keto-friendly)

• Cheddar or Monterey Jack Cheese (shredded)

• Optional: Celery sticks for serving.

Simplified Instructions: Steam cauliflower florets until tender-crisp or use steamed cauliflower rice as a base layer in the baking dish. In a bowl, combine shredded chicken, softened cream cheese, hot sauce, and ranch/blue cheese dressing. Mix well. Spread the chicken mixture over the cauliflower. Top with shredded cheese. Bake at 350°F (175°C) for 20-25 minutes, until heated through and cheese is melted.

Tip: Drizzle extra hot sauce and blue cheese crumbles on top before serving.

9. Keto Shepherd's Pie with Cauliflower Mash

Description: A comforting classic gets a keto makeover. Savory ground meat and vegetable filling topped with a creamy, cheesy cauliflower mash instead of potatoes.
Why Keto? Replaces the traditional high-carb potato topping with low-carb mashed cauliflower.
Key Ingredients:

• For the Filling: Ground Beef or Lamb, Onion (diced), Carrots (diced small, use sparingly for keto), Celery (diced), Garlic (minced), Beef Broth, Worcestershire Sauce, Tomato Paste (small amount), Thyme, Rosemary.

• For the Topping: Cauliflower Florets, Butter, Heavy Cream or Cream Cheese, Cheddar Cheese (optional), Salt, Pepper.

Simplified Instructions: Steam cauliflower until very tender. Mash with butter, cream/cream cheese, salt, pepper, and optional cheddar until smooth. Set aside. Brown the ground meat with onions, carrots (if using), and celery. Add garlic, tomato paste, herbs, Worcestershire sauce, and beef broth. Simmer until sauce thickens slightly. Transfer meat mixture to a baking dish. Spread the cauliflower mash evenly over the top. Rake the top with a fork for texture. Bake at 400°F (200°C) for 20-25 minutes, or until the topping is golden brown and the filling is bubbly.

Tip: Adding a pinch of nutmeg to the cauliflower mash enhances its flavor.

10. Easy Keto Pizza Casserole

Description: Satisfy your pizza cravings without the carbs! A crustless casserole layered with meat, low-carb sauce, cheese, and your favorite pizza toppings. If you're also looking for crust options, the Keto Breads and Pizza recipe book has dedicated recipes.
Why Keto? Eliminates the high-carb pizza crust, focusing on keto-friendly toppings.
Key Ingredients:

• Ground Beef or Italian Sausage (cooked)

• Sugar-Free Pizza Sauce or Marinara Sauce

• Pepperoni Slices

• Mozzarella Cheese (shredded)

• Optional Toppings: Cooked mushrooms, olives, diced bell peppers, onions.

• Italian Seasoning

Simplified Instructions: Spread cooked ground meat or sausage in the bottom of a baking dish. Top with pizza sauce. Layer with pepperoni slices and any other desired low-carb toppings. Sprinkle generously with Italian seasoning. Cover completely with shredded mozzarella cheese. Add a few more pepperoni slices on top if desired. Bake at 375°F (190°C) for 15-20 minutes, until cheese is melted, bubbly, and slightly golden.

Tip: Mix some cream cheese into the cooked meat base for an extra creamy texture.

11. Keto Chicken Cordon Bleu Casserole

Description: Deconstructed Chicken Cordon Bleu – layers of chicken, ham, and Swiss cheese baked in a creamy Dijon sauce. Elegant enough for guests, easy enough for a weeknight.
Why Keto? Uses naturally low-carb ingredients and avoids the traditional breading.
Key Ingredients:

• Cooked Chicken (diced or shredded)

• Deli Ham (diced)

• Swiss Cheese (shredded or sliced)

• Cream Cheese

• Heavy Cream

• Dijon Mustard

• Garlic Powder, Salt, Pepper

• Optional Topping: Crushed pork rinds mixed with melted butter for a crispy topping.

Simplified Instructions: In a baking dish, layer the cooked chicken and diced ham. In a saucepan, melt cream cheese with heavy cream over low heat. Whisk in Dijon mustard, garlic powder, salt, and pepper until smooth. Pour the sauce over the chicken and ham. Top evenly with Swiss cheese. If using, sprinkle the pork rind topping over the cheese. Bake at 350°F (175°C) for 20-25 minutes, until hot, bubbly, and the cheese is melted (and topping is golden, if used).

Tip: Use good quality deli ham and Swiss cheese for the best flavor.

12. Keto Tuna Melt Casserole

Description: A comforting, budget-friendly casserole reminiscent of a tuna melt sandwich, but without the bread. Creamy tuna salad baked with a cheesy topping.
Why Keto? Focuses on tuna, mayo, cheese, and low-carb veggies, ditching the bread.
Key Ingredients:

• Canned Tuna (drained)

• Mayonnaise (keto-friendly)

• Celery (finely diced)

• Onion (finely diced, optional)

• Dill Pickles or Relish (sugar-free, finely diced)

• Lemon Juice

• Cheddar Cheese (shredded)

• Salt, Pepper

• Optional Base: Steamed cauliflower florets or zucchini noodles.

Simplified Instructions: If using a base, place steamed cauliflower or zucchini noodles in the bottom of a small baking dish. In a bowl, combine drained tuna, mayonnaise, celery, onion (if using), pickles/relish, lemon juice, salt, and pepper. Mix well. Spread the tuna mixture over the base (or directly into the baking dish). Top generously with shredded cheddar cheese. Bake at 375°F (190°C) for 15-20 minutes, until heated through and the cheese is melted and slightly golden.

Tip: Add a few chopped hard-boiled eggs to the tuna mixture for extra protein and creaminess.

13. Keto Reuben Casserole

Description: All the components of a classic Reuben sandwich – corned beef, sauerkraut, Swiss cheese, and Thousand Island dressing – layered and baked into a delicious low-carb casserole.
Why Keto? Omits the rye bread, focusing on the naturally low-carb fillings. Use a sugar-free dressing.
Key Ingredients:

• Cooked Corned Beef (chopped or shredded)

• Sauerkraut (well-drained)

• Swiss Cheese (shredded or sliced)

• Keto-Friendly Thousand Island Dressing (store-bought or homemade)

• Cream Cheese (optional, for extra creaminess)

Simplified Instructions: Grease a baking dish. Spread the drained sauerkraut evenly on the bottom. Layer the chopped corned beef over the sauerkraut. If using cream cheese, dot small pieces over the corned beef. Drizzle generously with keto Thousand Island dressing. Top evenly with Swiss cheese. Bake at 350°F (175°C) for 25-30 minutes, until hot, bubbly, and the cheese is melted and golden.

Tip: Making your own keto Thousand Island dressing gives you control over ingredients and sugar content.

14. Creamy Keto Mushroom and Chicken Casserole

Description: A savory and earthy casserole featuring tender chicken and mushrooms baked in a rich, creamy Parmesan sauce.
Why Keto? Uses mushrooms, chicken, cream, and cheese – all keto-friendly ingredients.
Key Ingredients:

• Cooked Chicken (shredded or diced)

• Mushrooms (sliced and sautéed)

• Onion (diced small, sautéed)

• Garlic (minced)

• Heavy Cream

• Chicken Broth

• Parmesan Cheese (grated)

• Cream Cheese (optional, for thickness)

• Fresh Thyme or Parsley (chopped)

• Salt, Pepper

Simplified Instructions: Sauté mushrooms and onion until tender; add garlic and cook for another minute. In the same pan (or a saucepan), combine heavy cream, chicken broth, Parmesan cheese, and optional cream cheese. Heat gently, whisking until smooth and slightly thickened. Stir in sautéed mushrooms/onions, cooked chicken, and fresh herbs. Season with salt and pepper. Pour into a baking dish. Top with extra Parmesan if desired. Bake at 375°F (190°C) for 20 minutes, or until hot and bubbly.

Tip: Use a mix of mushroom varieties (cremini, shiitake, oyster) for deeper flavor.

15. Keto Bacon Cheeseburger Cauliflower Casserole

Description: Combining the best of cheeseburgers and bacon with a low-carb cauliflower base. It's hearty, flavorful, and incredibly satisfying.
Why Keto? Uses cauliflower instead of potatoes or pasta, combined with keto staples like ground beef, bacon, and cheese.
Key Ingredients:

• Cauliflower Florets (steamed until tender)

• Ground Beef (cooked and drained)

• Bacon (cooked and crumbled)

• Onion (diced, sautéed)

• Cheddar Cheese (shredded)

• Cream Cheese

• Beef Broth or Heavy Cream

• Mustard, Sugar-Free Ketchup (optional)

• Salt, Pepper

Simplified Instructions: Mash the steamed cauliflower lightly or leave as florets in the bottom of a baking dish. In a bowl, combine cooked ground beef, half the crumbled bacon, sautéed onion, softened cream cheese, and broth/cream. Stir in mustard and ketchup if using. Season with salt and pepper. Spread the meat mixture over the cauliflower. Top generously with shredded cheddar cheese and the remaining crumbled bacon. Bake at 350°F (175°C) for 20-25 minutes, until heated through and cheese is melted and golden.

Tip: Add some diced dill pickles into the meat mixture for an authentic cheeseburger tang.

Tips for Perfect Keto Casseroles Every Time

Using other tools, like those featured in a Keto Air Fryer Cookbook, can also expand your keto cooking repertoire.

• Use Freshly Shredded Cheese: Pre-shredded cheese often contains anti-caking agents like cellulose (a carb). Shredding your own block cheese results in better melting and fewer hidden carbs.

• Don't Overcook Vegetables: Especially broccoli and cauliflower. Steam or blanch them until just tender-crisp before adding to the casserole to avoid a mushy texture.

• Drain Excess Liquid: Pat zucchini slices dry, squeeze spinach thoroughly, and drain grease from cooked meats to prevent a watery casserole.

• Season Generously: Keto cooking relies on good seasoning. Don't be shy with salt, pepper, herbs, and spices. Taste and adjust before baking.

• Let it Rest: Allow casseroles to rest for 5-10 minutes after removing them from the oven. This helps them set slightly, making serving easier and allowing flavors to meld.

• Freezing & Reheating: Most keto casseroles freeze well. Cool completely, cover tightly (or portion into freezer-safe containers), and freeze for up to 3 months. Thaw overnight in the refrigerator and reheat in the oven or microwave.

Keto casseroles prove that low-carb eating can be incredibly comforting, convenient, and delicious. From cheesy chicken bakes to hearty ground beef dishes and satisfying breakfast options, there's a keto casserole recipe here for every craving and occasion. For other meal types, like a reset, a Keto Soup Detox might be interesting.

These 15 recipes offer a fantastic starting point for exploring the world of low-carb comfort food. For an even broader collection, the 500 Delicious Keto Recipes Cookbook is a comprehensive resource. They are adaptable, perfect for meal prep, and generally loved by the whole family. So, preheat your oven, grab your favorite baking dish, and get ready to enjoy the simple, satisfying goodness of a homemade keto casserole. Happy cooking! To keep the momentum going, consider following a structured guide like the 30 DAY KETO MEAL PLAN.