For the Pasta Salad: Cook pasta according to package instructions. Drain and then rinse with cold water. Set aside in the colander for just 5 minutes or so.
In a large mixing bowl, combine the drained pasta, fresh mozzarella pearls, cubed cheddar, mini pepperoni (or cubed salami), olives, tomatoes, red onion, parsley, and half of the parmesan. Toss together gently, sprinkling in the salt and pepper as you toss.
For the dressing: In a 16oz mason jar (or other sealable container with a lid) add the vinegar, water and seasoning mix. Shake well until combined, then add the oil and shake again until completely combined.
Drizzle the dressing all over and toss gently , then sprinkle the remaining parmesan over the top.
Cover and refrigerate for at least 4 hours before serving. Store in the fridge for up to 4 days.