1 oz. onion, chopped
1 tbsp. chopped green pepper
1/2 c. tomato sauce, no sugar added
1 1/2 tsp. white vinegar
1/8 tsp. oregano
1 hamburger roll
2 tbsp. chopped celery
4 oz. cooked ground beef, crumbled
2 tbsp. water
3/4 tsp. dry mustard
1/8 tsp. ginger
1 drop hot sauce

Cook onion, celery and green pepper in non-stick skillet about 5 minutes. Add remaining ingredients and mix well. Simmer over medium heat, stirring occasionally, 10 minutes to blend flavors. Open hamburger roll. Spoon beef mixture on. Makes 1 serving.