This Classic Tuna Noodle Casserole is the ultimate comfort-food staple—creamy, cheesy, and easy to pull together in under an hour. Featuring tender egg noodles, savory tuna, and peas all wrapped in a warm mushroom-soup–based sauce, it’s topped with a crispy breadcrumb accent or potato chips for contrast. Perfect for weeknight dinners, this casserole delivers nostalgic flavors with minimal fuss—just plan for about 30 minutes of prep time and the rest in the oven. Ideal for feeding a family or batch cooking for leftovers that reheat beautifully.
(Based on trusted reference recipes and traditional casserole components)
12 oz (about 3 cups) egg noodles
2 cans (10.75 oz each) cream of mushroom soup
½ to 1 cup milk
2 (5 oz) cans tuna in water, drained
1 cup frozen green peas
1 to 1½ cups shredded Cheddar cheese, divided
Optional crunchy topping: ½ cup potato chips, breadcrumbs, or crushed crackers
Salt and pepper to taste
Optional: ¼ cup chopped onion sautéed in butter for extra flavor
Preheat & Cook Noodles
Preheat your oven to 375 °F (190 °C). Cook the egg noodles according to package directions until al dente, then drain and set aside.
(Optional) Sauté Onions
If using, sauté chopped onion in a bit of butter until soft and translucent, then remove from heat.
Mix Filling
In a large bowl, combine the cream of mushroom soup, milk (start with ½ cup, add more if needed for consistency), tuna, peas, half of the shredded cheese, cooked noodles, and optional sautéed onions. Season with salt and pepper as desired.
Assemble Casserole
Transfer the mixture into a greased 9×13-inch baking dish. Sprinkle the remaining cheese evenly over the top.
Add Topping
Add your chosen crunchy topping—whether potato chips, breadcrumbs, or crackers—to cover the cheese layer.
Bake
Bake in the preheated oven for 20–25 minutes, or until the casserole is hot, bubbly, and the topping is golden and crisp.
Serve
Let rest for a few minutes before serving warm. Enjoy!
Calories: ~380 kcal
Total Fat: ~12 g
Saturated Fat: ~6 g
Cholesterol: ~40 mg
Sodium: ~850 mg
Carbohydrates: ~42 g
Dietary Fiber: ~2 g
Sugars: ~6 g
Protein: ~22 g