Souper Burgers
["1/2 c. onion", "1 to 1 1/2 lb. ground beef", "1 can chicken gumbo soup", "1/4 c. catsup", "1 Tbsp. mustard"]
["Brown onion and ground beef.", "Drain off fat.", "Add soup, catsup and mustard.", "Heat until thoroughly warm.", "Season to taste.", "Serve on buns or over rice."]
["onion", "ground beef", "chicken gumbo soup", "catsup", "mustard"]