Step 1: Cook the Pasta

1. Bring a large pot of salted water to a boil.

2. Add the rotini and cook according to package directions until al dente.

3. Drain and rinse under cold water to stop cooking and cool the pasta.

4. Set aside to cool completely.

Step 2: Make the Creamy Basil Dressing

1. In a small mixing bowl, whisk together mayonnaise, Greek yogurt, olive oil, lemon juice, garlic, Dijon mustard, salt, and black pepper.

2. Stir in the chopped basil and grated Parmesan (if using).

3. For a smoother dressing, you can blend the mixture in a food processor until creamy.

4. Chill the dressing while prepping the rest of the ingredients.

Step 3: Prepare the Caprese Ingredients

1. Halve the cherry tomatoes and dice the mozzarella if not using pearls.

2. Thinly slice the red onion and tear the fresh basil leaves into smaller pieces.

Step 4: Assemble the Salad

1. In a large mixing bowl, combine the cooled pasta, cherry tomatoes, mozzarella, red onion, and basil.

2. Pour the creamy basil dressing over the salad.

3. Gently toss everything together until the pasta is evenly coated and ingredients are well mixed.

4. Season with additional salt and pepper to taste.

Step 5: Chill and Serve

1. Cover and refrigerate the salad for at least 30 minutes before serving to let the flavors meld.

2. Garnish with extra fresh basil or a drizzle of olive oil if desired.

3. Serve cold or at room temperature.