Begin by bringing a large pot of salted water to a rolling boil. Add pasta and cook according to package instructions for about 8-10 minutes until al dente. Drain and rinse under cold water.

Chop your vegetables: dice bell peppers, slice olives, and halve cherry tomatoes. Combine in a mixing bowl.

In a large mixing bowl, combine the cooled pasta, prepared vegetables, and pepperoni. Gently fold everything together.

Pour the zesty Italian dressing over the mixture and toss thoroughly until well-coated.

Cover with plastic wrap and refrigerate for at least 30 minutes before serving. Toss again before serving.