Prepare to make the salad by opening and draining the three cans of beans. Then chop celery, green pepper, and yellow onion.
In a large bowl, combine the drained beans and chopped celery, green pepper, and onion.
In a smaller bowl, whisk together the sugar, vinegar, oil, salt, and pepper.
Pour the dressing over the bean mixture. Cover and refrigerate at least 8 hours or overnight.
Serve cold or at room temperature.
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Notes
Wax Beans. You can usually find canned wax beans at the grocery store, next to canned green beans. If you can’t find them, substitute more green beans or lima beans.Variations. Add some chopped cooked carrots, a jar of drained pimentos, or some sliced green onions, if you'd like. You can also substitute canned chickpeas or canned asparagus if you can't find wax beans.
Storage Information. Salad will keep in the refrigerator for up to one week. Store well covered and drain off excess liquid as needed before serving. Nutrition facts. The nutrition info listed here includes all of the marinade, which doesn't get completely absorbed into the beans.