Creole Burger
["1 lb. ground beef", "1/2 c. chopped onion", "1 can Campbell's chicken gumbo soup", "2 Tbsp. ketchup", "2 Tbsp. prepared mustard", "1/4 tsp. black pepper"]
["Brown ground beef and chopped onion in heavy skillet, stirring to separate meat particles.", "Stir in remaining ingredients. Simmer 5 minutes."]
["ground beef", "onion", "Campbell's chicken gumbo soup", "ketchup", "mustard", "black pepper"]