1Use medium size can lima beans. Drain juice into measuring cup. Fry onions and celery in butter for 10 minutes. When this process is taking place, mix vinegar, mustard, and brown sugar in vegetable juice.
2Put half the beans in baking dish; add half the celery and onions; season with salt and pepper. Continue this process with another layer of beans, vegetables, and salt and pepper.
3Pour bean liquid over mixture. Place casserole in 350 degree oven for 30 minutes.