Creamy Chicken Caesar Pasta Salad Recipe

Name: Creamy Chicken Caesar Pasta Salad Recipe
Ingredients: 1 cup mayonnaise; ⅓ cup sour cream; 1 large clove garlic, pressed; 2 tablespoons lemon juice; 2 anchovies finely minced (Optional); 1 teaspoon Worcestershire sauce (double amount if not using anchovies); 1 pound penne pasta, cooked until al dente and rinsed with cool water; 6 large leaves Romaine lettuce, thinly sliced; 1½ cups grape tomatoes; 4 green onions. sliced; ½ cup finely shredded Parmesan cheese; ½ teaspoon ground black pepper; 2 grilled chicken breasts, diced; 1½ cups croutons