Sloppy Joes - cooking recipe

Ingredients

1 lb. hamburger
1 small onion, chopped
1 Tbsp. vinegar
2 Tbsp. prepared mustard
3/4 c. catsup
green pepper (optional)

Preparation

Brown hamburger and onion.
Drain and add a little flour.
Then add other ingredients and heat.
(May replace vinegar and a little of the catsup with barbecue sauce.)
Serve on toasted buns.