1 (16 oz.) tri color twists
1/2 c. green pepper chopped
3/4 c. celery chopped
1 sm. onion chopped
8 oz. shredded cheddar cheese

DRESSING:

1 1/3 c. mayonnaise
1/2 c. oil
1/4 c. vinegar
2 1/2 tsp. dill weed
1 tsp. dry mustard
1 tsp. onion salt
1/3 tsp. pepper
4 tbsp. sugar

Cook macaroni according to directions, rinse in cold water. Add green pepper, celery and cheese. Mix dressing ingredients in small bowl, add chopped onion. Pour over macaroni, stir and chill.