Crush croutons from salad mix; set aside. In large bowl, combine remaining Caesar salad mix ingredients and chicken; mix well.
Wrap tortillas in moist microwavable paper towels. Microwave on High 15 to 20 seconds or until warm.
Spoon salad mixture evenly onto center of warm tortillas; spread to within 1 inch of edges. Sprinkle each with shredded cheese and crushed croutons. Fold bottom of each tortilla up over filling; fold sides over.