1 lb. ground beef
1 med. chopped onion
3 c. tomato juice or paste or sauce and water
1 tbsp. vinegar
1 tbsp. Worcestershire sauce
1 tsp. salt
1/8 tsp. pepper
1 tsp. dry mustard
1 c. uncooked elbow macaroni

Brown beef and onion in skillet. Add the rest of the ingredients and cook covered about 20 minutes or until macaroni is done. Stir occasionally.