2 (15 oz.) cans butter beans, drained
1 (1 lb.) can green lima beans, drained
1 (1 lb.) can red kidney beans, drained
1 (1 lb. 11 oz.) can B&M Boston baked beans
8 to 12 slices bacon
4 lg. onions, peeled and cut in rings
3/4 c. brown sugar
1/2 c. vinegar
1 tsp. salt
1/4 tsp. garlic powder
1/4 tsp. dry mustard
Pepper to taste

Cut up and fry bacon until almost crisp. Place bacon in a bowl. In skillet with bacon drippings, add onions, brown sugar, garlic powder, dry mustard, vinegar, and pepper. Cook on low heat for 20 minutes covered. Mix beans, bacon and onion mixture together. Bake in covered 3-quart casserole at 350 degrees for 1 hour. Can also be cooked in a crock pot for 6 hours on low.