3 (19 oz.) cans pork & beans
1 lg. onion, chopped
1 lb. bacon, diced
3 tbsp. brown sugar
2 tbsp. mustard

Fry bacon and onion until soft. Add to beans, mustard and brown sugar in casserole dish. Bake at 300 degrees for 3 to 4 hours or all day at 225 degrees.