1 lb. ground beef
1 med. onion, chopped
1 med. bell pepper, chopped
1/2 c. ketchup
1/4 c. mustard
1 can chicken gumbo soup

Brown first 3 ingredients; drain. Add soup; stir in remaining ingredients. Simmer for 20 minutes over low heat. Serve open face on toasted buns with chips and pickles.