Easy Italian Casserole

1 lb ground beef
1/2 cup chopped onion
1 clove garlic, crushed
15 oz can tomato sauce
1 small can mushrooms, drained
1 teaspoon sugar
1/2 teaspoon oregano
1/2 teaspoon basil
salt and pepper
2 cups Bisquick
1/2 cup milk
1 egg
8 slices of cheddar cheese
1/4 cup grated Parmesan cheese

Brown and drain hamburger. Add onion, garlic, sauce, mushrooms and spices. Cook for 10 minutes. Mix Bisquick, milk and egg. Spread Bisquick mixture in a 9 x 9 baking dish. Top with 4 slices of cheese, meat mixture and more cheese. Top with parmesan cheese. Bake at 400 degrees for 20 minutes.