1-1 1/2 lbs. lean hamburger meat
1/2 sm. onion
1 can enchilada sauce
1 bag Doritos or Tostito chips
1/2 lb. Longhorn cheese
1/2 lb. Mozzarella or Monterey Jack cheese
1 sm. container sour cream

Brown together hamburger meat and onion. In large casserole dish layer starting with chips, hamburger mixture, sour cream, enchilada sauce and cheese. Continue layering until hamburger mixture is gone ending with cheese. Bake at 350 degrees until brown, about 30-45 minutes.