2 lbs. seashell noodles, cooked
2 c. diced celery
2 c. diced green pepper
1 lg. onion, diced
2 tbsp. parsley flakes
1 tsp. oregano (or to taste)
2 c. sliced black olives
3/4 c. Parmesan cheese
1 lg. bottle Italian dressing

Mix all together. Let set overnight, stirring once or twice.