Sign up for P.F. Changs Warrior Rewards to receive free lettuce wraps! Just fill out a short form with basic information and your favorite P.F. Changs locaion. At the end of the form it will ask if you have a Warrior Rewards card. If you do not have a card, just provide your phone number and give that to your server next time you dine to receive credit for your visit. It’s that simple to receive delicious free lettuce wraps!