Doritos Salad

2-3 roma tomatoes, cubed
1 15oz can red kidney beans
1 15oz can black beans
1 15oz can Northern White beans
1 15oz can garbanzo beans
1 head lettuce shredded
1 can black olives, drained
1 lb ground beef, browned with taco seasonion
1 bunch green onions, chopped
shredded cheddar cheese, optional
1 bag doritos
1 16oz bottle catalina dressing

toss first 10 ingredients together, refrigerate. Add slightly crush doritos and dressing just before serving