12 or 16 oz. pkg. rainbow twist macaroni noodles, cooked
1 pkg. sliced pepperoni, sliced in half
1 green bell pepper, chopped
1 red bell pepper, chopped
1 sm. or med. red onion, chopped
1 sm. can chopped olives
3/4 bottle Italian dressing
Parmesan cheese

Toss all ingredients together, then add dressing. Sprinkle on Parmesan cheese to taste. Chill at least 1 hour before serving. Toss and sprinkle again with cheese before serving.