Baked Beans

4 cans pork and beans(15.5 oz)
1 cup Ketchup
1 TBSP dry mustard
1 cup brown sugar
1 lb bacon
1 medium onion, chopped

Dice and cook the bacon in a frying pan, then remove the bacon and saute the onion in bacon drippings.
Combine all the ingredients and bake, uncovered, for 2 hours at 300 degrees.