1/2 lb. macaroni shells, cooked and drained
1/4 lb. pepperoni, cut in quarters
1/4 lb. mozzarella cheese, shredded
2 tomatoes, cut up
1 green pepper, cut up
1 onion, cut up
1 tbsp. oregano
1 tsp. salt
1/2 tsp. pepper
3/4 c. oil
2 tbsp. parmesan cheese
2 tbsp. sugar
1/2 c. vinegar

Mix together the first six ingredients. In a separate bowl, mix together remaining ingredients and stir well. Pour over macaroni mixture. Chill.