Cheeseburger Casserole
["1 lb. ground beef", "1 c. onion, chopped", "3/4 tsp. salt", "1/2 tsp. pepper", "1 can tomato sauce", "1/2 c. catsup", "1 pkg. American cheese slices"]
["Cook beef and onion until meat is slightly browned.", "Drain. Add salt and pepper.", "Stir in catsup and tomato sauce.", "Heat thoroughly.", "Turn into pan.", "Cut cheese into 3-inch strips; place over meat.", "Bake at 425\u00b0 for 20 to 25 minutes."]
["ground beef", "onion", "salt", "pepper", "tomato sauce", "catsup", "American cheese slices"]