What about a three bean salad or a bean salad I often make that gets rave reviews is a white bean salad.
Drain and rinse navy beans
add purple onion diced, chopped parsley, diced celery, diced sweet red or yellow or green pepper, small jar of chopped green olives with pemento
add a dressing made with olive oil, vinegar, salt, pepper, celery seed, raw garlic to taste.