Begin by bringing a large pot of salted water to a boil. Add the rotini pasta and cook according to the package instructions until al dente, around 8-10 minutes. Once cooked, drain and rinse under cold water.

In a large mixing bowl, combine the cooled rotini pasta with diced cooked chicken breast, chopped romaine lettuce, and cherry tomatoes if using. Toss gently to mix.

Pour Caesar dressing over the salad and toss to ensure everything is well coated.

Sprinkle grated Parmesan cheese, season with salt and pepper, and toss once more.

Top with crushed croutons before serving. Optionally, add fresh herbs like parsley or basil.