Skinny Sloppy Joes September 20, 2015 admin All Recipes 0 serves 8 1-½ lbs. extra lean ground beef 1 green pepper, chopped 1 onion, chopped 1-½ c. ketchup 2 tsp. yellow mustard Brown ground beef until no longer pink; drain. Return to pan, add remaining ingredients. Cover and simmer for 20-30 minutes.