Step 1: Bring a large pot of salted water to a boil. Cook the rotini pasta according to package directions until al dente. Drain and rinse immediately with cold water to stop the cooking process.
Step 2: In a very large mixing bowl, combine the cooled pasta, cubed salami, pepperoni, mozzarella pearls, cherry tomatoes, cucumber, bell pepper, red onion, and black olives.
Step 3: Pour the Italian dressing over the mixture. Add the dried oregano and fresh parsley. Toss thoroughly until all ingredients are evenly coated.
Step 4: Taste and season with additional salt and pepper if needed. Cover the bowl and refrigerate for at least 2 hours before serving to allow flavors to meld.
Step 5: Give the salad a quick toss before serving. If it seems dry, add a splash more dressing or a drizzle of olive oil.