1 lb. hamburger
1/2 c. onion
1 sm. green pepper
1 c. ketchup
1 heaping tsp. mustard
Splash of vinegar
1/2 c. brown sugar
Hamburger rolls

Brown meat and onion in skillet. Drain. Add rest of ingredients except rolls; stir. Cover and cook on low 15 minutes or until pepper is soft. Spoon over rolls. Serves 4.