1 lb. ground beef
1 c. diced celery
1/2 c. diced onion
2 tbsp. flour
2 tbsp. vinegar
1/2 tsp. dry mustard
3/4 c. catsup
1 tbsp. brown sugar

Brown meat, celery and onion; add remaining ingredients and cook over low heat for 20 minutes. Serve in 6 toasted hamburger buns or over rice or spaghetti. Yield: 6 servings.