1 lb. ground beef
1 c. chopped onion
1/4 tsp. pepper
1/4 tsp. salt
1 (15 oz.) tomato sauce
1 tsp. chili powder
8 oz. spaghetti, cooked and drained
Parmesan cheese
Mozzarella cheese

Brown ground beef. Add onions. Stir until tender. Add salt and pepper, then tomato sauce and chili powder. Simmer for about 25 minutes. Place half the cooked spaghetti in a casserole dish. Sprinkle Parmesan cheese, part of the Mozzarella cheese and 1/2 of the meat sauce, then repeat the remaining layer and sauce. Top with Mozzarella cheese.

Bake for about 30 minutes at 350°F.