Southwest Pasta Salad

This is one that my mom is always asked to bring to events. It is a good quick salad that is very tasty.

1 pkg. rotini (cooked)
1 can kidney beans
1 can garbanzo beans
1 can corn
1 can olives (sliced)
1/2 green pepper
1/2 red pepper
1/3 purple onion
1 pkg cheddar cheese (grated)
1 pkg. fritos chips
1 bottle southwest ranch dressing

Cook rotini according to package directions. Pour ranch over pasta. Drain juice from all canned products and add rotini, dice fresh vegetables and add to salad. Stir in cheese and chips just before serving.