Ranch-Style Baked Beans
["2 Tbsp. oil", "1 lb. hamburger", "1 large onion", "1 (1 lb.) can pork and beans", "2 (1 lb.) cans kidney beans", "1 c. ketchup", "1/2 c. cold water", "2 Tbsp. mustard", "2 tsp. vinegar"]
["Brown meat and onion in oil.", "Mix with remaining ingredients. Bake at 400\u00b0 for 30 to 40 minutes."]
["oil", "hamburger", "onion", "pork", "kidney beans", "ketchup", "cold water", "mustard", "vinegar"]