Barbecue Baked Beans
["1 lb. ground beef", "1 onion, chopped (optional)", "2 (16 oz.) cans pork and beans", "1/2 c. brown sugar, packed", "1/4 c. liquid smoke", "1/2 c. barbecue sauce", "2 Tbsp. mustard"]
["Brown meat and onion.", "Drain.", "Mix all ingredients thoroughly and put into casserole dish.", "Bake at 350\u00b0 for 1 hour."]
["ground beef", "onion", "pork", "brown sugar", "liquid smoke", "barbecue sauce", "mustard"]