Cook the penne pasta according to the package instructions until al dente. Drain and rinse under cold water to cool. Set aside.
In a large bowl, combine the cooked penne pasta, chopped chicken breast, cherry tomatoes, grated Parmesan cheese, thinly sliced red onion, and chopped romaine lettuce. Toss to mix well.
In a medium bowl, whisk together the mayonnaise, plain Greek yogurt, lemon juice, Dijon mustard, minced garlic, grated Parmesan cheese, Worcestershire sauce, salt, and pepper until smooth and well combined.
Pour the Caesar dressing over the pasta salad and toss to coat evenly.
Sprinkle with croutons, if using, and toss gently.
Serve immediately or refrigerate for up to 2 hours to let the flavors meld.
Prep Time: 15 minutes | Cooking Time: 10 minutes | Total Time: 25 minutes
Kcal: 350 kcal | Servings: 6 servings
