Begin by boiling a large pot of salted water. Once it reaches a rolling boil, add the tri-color rotini, cooking according to the package instructions until al dente—approximately 8–10 minutes. Drain the pasta in a colander and rinse it under cold water to halt the cooking process. Allow it to cool completely before transferring it into a large mixing bowl.

In the bowl with the cooled tri-color rotini, pour in the Kraft's Zesty Italian dressing. Add the Italian seasoning, onion powder, and garlic powder. Using a spatula, gently fold the mixture together until the pasta is evenly coated with the tangy dressing and seasonings.

Sprinkle the grated Parmesan cheese over the dressed pasta. Incorporate any desired add-ins such as sliced olives, cubed Colby Jack cheese, or mini pepperoni. Carefully mix everything until well combined.

Cover the bowl and refrigerate the Italian Pasta Salad for at least 1 hour before serving.