Bread:If you are not able to find saj bread, use Labense-style pita bread. Separate the pita in half so you are using one side of the pita for each wrap.
Cheesy Shawarma:if you are a fan of cheesy sandwiches, add a generous sprinkle of cheese into the shawarma when assembling.
For low-carb:use Mission or any other low-carb tortilla or make in a lettuce wrap.