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