Rancho Baked Beans
["1/4 c. salad oil", "2 c. chopped onions", "1 lb. ground meat", "1 tsp. salt", "1 c. ketchup", "2 Tbsp. prepared mustard", "2 tsp. cider vinegar", "2 cans pork and beans", "1 can kidney beans, drained"]
["Heat oil in skillet.", "Add onions and simmer until golden brown.", "Add ground beef.", "Stir with a fork while onions brown. Add remaining ingredients.", "Pour into a 2-quart casserole.", "Bake in hot 400\u00b0 oven for 30 minutes."]
["salad oil", "onions", "ground meat", "salt", "ketchup", "mustard", "cider vinegar", "pork", "kidney beans"]