Creating your Creamy Pasta Salad is both fun and easy. Follow these step-by-step instructions to achieve delicious results:

1. Cook the Pasta: Bring a large pot of salted water to a boil. Add the rotini and cook according to package instructions until al dente. Drain and rinse under cold water to cool the pasta down.
2. Prepare the Dressing: In a large mixing bowl, combine mayonnaise, sour cream, Dijon mustard, apple cider vinegar, garlic powder, onion powder, salt, and black pepper.
3. Mix Dressing and Pasta: Add the cooled pasta to the dressing mixture. Stir well until all the pasta is evenly coated.
4. Add the Vegetables: Gently fold in the cherry tomatoes, cucumber, bell peppers, red onion, and peas until everything is evenly distributed.
5. Add Protein (Optional): If you are using diced chicken or ham, gently fold it into the salad now.
6. Chill the Salad: Cover the mixing bowl with plastic wrap or transfer the pasta salad into an airtight container. Refrigerate for at least 30 minutes to allow the flavors to blend.
7. Final Touch: Just before serving, give the salad a gentle stir. Taste for seasoning and adjust as needed.
8. Serve: Garnish with fresh parsley for an added touch of color and flavor.

Following these steps guarantees that your Creamy Pasta Salad will come out flavorful and appealing every time!