1 package macaroni and cheese dinner
1 cup chopped celery
1/2 cup chopped green pepper
1 jar - 4 ounces pimiento, drained and diced
1/2 cup mayonnaise
1 tablespoon vinegar
salt and pepper to taste

Cook macaroni following package direction. Drain. Return macaroni to pan immediately. Stir contents of cheese packet into hot macaroni. Blend well. In large bowl combine remaining ingredients with macaroni; toss with fork and season to taste. Chill thoroughly before serving.