Modified from Brownie Booklet
1 lb ground beef
1 large onion, chopped
1 tbsp. Worcestershire sauce
1 tsp garlic salt
1 cup cheddar cheese, shredded
1/2 cup milk
1/2 cup Bisquick
2 eggs
Heat oven to 325. Spray brownie pan with cooking spray. Cook beef and onion until fully cooked, drain. Cook for 5 minutes, then stir in Worcestershire sauce, garlic salt and cheese.
In a medium bowl, stir baking mixture ingredients with whisk or fork until blended. Spoon a little of this mixture into each well. Top with burger mixture. Spoon rest of baking mixture into each muffin cup.
Bake at 20-25 minutes or until toothpick is clean. Cool for 5 minutes, then remove and serve.
Makes 12 mini pies.