Begin by bringing a large pot of salted water to a boil over high heat. Add the rotini pasta and cook according to package directions until al dente, usually around 8-10 minutes. Drain the pasta in a colander and rinse it under cold water for about 30 seconds to stop the cooking process.

While the pasta is cooking, dice the grilled chicken into bite-sized pieces. If you're using rotisserie chicken for a quicker meal, simply shred the meat. It's essential the chicken is warm for better flavor integration.

In a spacious mixing bowl, combine the cooled rotini pasta, diced chicken, Caesar dressing, and freshly grated Parmesan cheese. Use a spatula to gently toss all the ingredients together until evenly coated.

Next, fold in the chopped romaine lettuce carefully to maintain the lettuce's crispness.

To serve, place the creamy salad mixture into a large serving bowl or individual plates and sprinkle croutons liberally over the top.