1 (28 oz.) can drained pork and beans
6 slices bacon, fried and crumbled
1 lg. onion, diced
1 tsp. heaping mustard
1/2 c. brown sugar
1/2 to 3/4 c. catsup

Cook bacon and set aside. Cook onion in bacon grease until tender. Drain grease. Place all ingredients in pan. Stir and cook on low heat until heated through.