Not So Sloppy Joes

1 pound ground beef

2 tablespoons oleo

1 large onion, chopped

1 can chicken gumbo soup

1 tablespoon mustard

3/4 cup catsup

Dash of salt

Melt oleo in skillet: add meat and onion. Cook until meat is brown and onion is transparent. Add remaining ingredients. Simmer for 30 minutes. Serve on hamburger buns.

Fills 8 regular size buns.