1 lb. ground beef
1/3 c. water
1/2 c. chopped onions
2 tbsp. catsup
2 tbsp. cooking oil
2 tbsp. prepared mustard
1 can chicken gumbo soup
Salt & pepper to taste

Brown meat in hot oil. Add onion and cook until onion is tender. Add remaining ingredients. Simmer over low heat for about 30 minutes. Serve on hamburger buns.