Mexican Casserole
["1 lb. ground beef", "1 medium onion, chopped", "2 small cans chili con carne", "1/2 small container sour cream", "6 slices American cheese", "1 medium bag Doritos chips"]
["Brown meat and onion.", "Mix with canned chili.", "Spread on bottom of oblong casserole dish.", "Spread sour cream carefully on top.", "Lay cheese slices on top of sour cream.", "Bake at 400\u00b0 for 15 minutes or until cheese melts.", "Let cool, then sprinkle Doritos on top.", "(Sour cream is optional.)"]
["ground beef", "onion", "carne", "sour cream", "American cheese", "Doritos chips"]