Grandma used to make this all the time!
15 oz green beans, drained
15 oz yellow (wax) beans, drained
15 15 oz kidney beans (or read beans), drained
15 oz grabanzo beans, drained
finely diced onion
1Combine beans, celery and onion. Set aside.
2Mix together sugar, oil, vinegar and salt. Pour over bean mixture.
3Refrigerate overnight. (Keeps for several days.)