Souper Burger
["1 lb. ground beef", "1/2 c. chopped onion", "1 Tbsp. shortening", "2 Tbsp. ketchup", "1 Tbsp. prepared mustard", "dash of pepper", "1 (10 1/2 oz.) can condensed chicken gumbo, pepper pot or vegetable soup", "6 buns, split and toasted"]
["Brown beef and onion in shortening; stir to separate meat particles.", "Add seasonings and soup.", "Simmer 5 to 10 minutes to blend flavors.", "Stir often.", "Serve on buns.", "Makes 6 servings."]
["ground beef", "onion", "shortening", "ketchup", "mustard", "pepper", "condensed chicken gumbo", "buns"]