Taco Salad

1 bag of Nacho Cheese Doritos, crushed
1 lb ground beef, cooked, drained and cooled
1 white/sweet onion chopped
1 can sliced olives
1 can kidney beans, rinsed and dried
1 1/2 - 2 heads of iceberg lettuce chopped
1 bottle of Catalina dressing
2-3 cups cheddar cheese, shredded
2-3 tomatoes, chopped

Mix everything in a large bowl. Add dressing to taste (I usually use the whole bottle).