Bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes, or until al dente. Drain, and rinse with cold water until no longer hot. Transfer noodles to a large bowl.
Stir in red bell peppers, green bell peppers, green onions, celery and olive oil. Mix in mayonnaise and soup mix. Refrigerate for a few hours before serving.
