Souperburger
["1 lb. ground beef", "1/2 c. chopped onion", "1 Tbsp. shortening", "1 can Campbell's chicken gumbo, golden mushroom, tomato, vegetable or cream of mushroom soup", "1 Tbsp. prepared mustard", "dash of pepper", "6 buns, split and toasted"]
["In", "skillet,", "brown", "beef", "and cook onion in shortening until tender;", "stir to separate meat.", "Pour off fat.", "Add soup and seasonings.", "Cook 5 minutes;", "stir now and then.", "Serve on buns. Makes 6 sandwiches."]
["ground beef", "onion", "shortening", "Campbell's chicken gumbo", "mustard", "pepper", "buns"]