1 head of lettuce, torn in pieces
4 tomatoes, chopped
1 med. onion, chopped
1 lb. hamburger, browned with 1 pkg. taco seasoning
8 oz. shredded Cheddar and Mozzarella cheese
8-12 oz. Thousand Island Dressing
Taco chips

Mix everything together except last 2 ingredients. Just before serving, lightly crush chips. Add to salad. Mix in dressing and serve. Makes a large salad.