Baked Beans
["1 1/2 lb. ground beef", "1 medium onion, chopped", "1 qt. can pork and beans", "2 Tbsp. vinegar", "2 Tbsp. brown sugar", "1/2 c. ketchup"]
["Mix pork and beans, vinegar, brown sugar and ketchup. Separately mix beef and onion, then mix all ingredients together. Place in a 2-quart covered baking dish.", "Bake at 350\u00b0 for 1 hour."]
["ground beef", "onion", "pork", "vinegar", "brown sugar", "ketchup"]