1 lb. ground hamburger
2/3 c. chopped onion
1/2 tsp. salt
Dash pepper
1 can chicken gumbo soup
1/4 can water
2 tbsp. fat
1 tbsp. catsup
1 tbsp. mustard
8 hamburger buns

Brown hamburger. Drain all but 2 tablespoons of fat. Add all other ingredients. Stir well. Simmer for 10-15 minutes. Serve on buns.