Cook the Pasta: Bring a large pot of salted water to a boil. Add the rotini pasta and cook according to package instructions until al dente. Once cooked, drain the pasta and rinse under cold water to cool. Set aside.
Prepare the Chicken: If you haven't already, cook your chicken. You can grill, bake, or use leftover rotisserie chicken. Once cooked, let it cool slightly, then shred or cut into bite-sized pieces.
Cook the Bacon: If not already done, cook the bacon until crispy. Once cooked, transfer to a paper towel-lined plate to drain and cool, then chop into pieces.
Mix the Salad: In a large bowl, combine the cooled pasta, chopped Romaine lettuce, shredded chicken, and chopped bacon. Pour the Caesar dressing over the salad mixture. Add the grated Parmesan cheese. Toss everything together until well combined. Adjust the amount of dressing to your liking.
Final Touches: Just before serving, add the croutons and give the salad a gentle toss to mix them in. This keeps them crispy.
Serve: Serve the salad immediately, garnished with a bit more Parmesan cheese on top, if desired. If you're not serving it right away, keep the croutons separate and add them just before serving to maintain their crunch.