1 lb. ground beef
1/2 med. onion, chopped
1 avocado, chopped
1 (7 oz.) pkg. taco flavored Doritos, crushed
1/4 lb. sharp cheese, grated 91 c.)
1/2 - 1 c. Catalina salad dressing
1/2 head lettuce, shredded
4 med. tomatoes, chopped

Cook ground beef and onion together until done. Drain. Combine meat mixture with avocado, Doritos, cheese and salad dressing. Just before serving, toss in lettuce and tomatoes. Serve at room temperature. Serves 12.