3 tbsp. butter
1/2 c. chopped onion
2 cloves minced garlic
2 tsp. brown sugar
1 tsp. dry mustard
1 (27 oz.) can red kidney beans, drained
2 (16 oz.) cans Boston baked beans
1 (15 oz.) can butter beans, drained
1/4 c. tomato ketchup
1 tbsp. cider vinegar
Salt to taste

Heat oven to 350 degrees. Melt butter in microwave. Add chopped onions and garlic. Saute until tender, do not brown. Stir in remaining ingredients. Bake in a 3-quart greased casserole for 25-30 minutes.