Pizza Casserole
["1 1/2 lb. ground beef", "1 onion, chopped", "1 (8 oz.) twist macaroni, cooked and drained", "1 large jar spaghetti sauce", "12 oz. Mozzarella cheese, shredded", "1 (3 1/2 to 6 oz.) pkg. pepperoni, sliced"]
["Brown beef and saute onion.", "Add sauce.", "Combine beef mixture and cooked noodles.", "In a large casserole dish, layer beef noodle mixture, cheese and pepperoni until all is used.", "Bake at 375\u00b0 for 20 minutes."]
["ground beef", "onion", "macaroni", "spaghetti sauce", "Mozzarella cheese", "pepperoni"]