Pizza Casserole
["1 1/4 c. macaroni", "1 lb. ground beef", "1 small onion", "1 small can tomato sauce", "1 c. Parmesan cheese", "1 c. pepperoni"]
["Boil and drain macaroni.", "Brown beef and onion together. Drain.", "Layer all ingredients in a 9 x 13-inch pan.", "Bake at 375\u00b0 for 45 minutes."]
["macaroni", "ground beef", "onion", "tomato sauce", "Parmesan cheese", "pepperoni"]