In a medium bowl, shred the cooked chicken breast and add the creamy Caesar dressing, grated Parmesan cheese, and freshly chopped romaine lettuce. If desired, stir in diced celery for an extra crunch. Mix everything together until all the ingredients are evenly coated with the dressing.

Lay a large tortilla flat on a clean, dry surface. Keep your tortilla warm by covering it with a damp cloth while you prepare the filling.

Spoon a generous portion of the chicken Caesar mixture down the center of the tortilla, being careful not to overload it—about a third of the way in.

To wrap the tortilla, begin by folding in the sides. Then, starting from the bottom, carefully roll the tortilla tightly towards the top.

If desired, use a sharp knife to cut the wrap in half diagonally. Serve immediately or wrap in plastic wrap for later.