Warm the pita bread either on the grill for a few seconds on each side or in the oven wrapped in foil.
Spread a generous amount of the prepared sauce onto each warmed pita bread.
Top with shredded lettuce, sliced tomatoes, thinly sliced red onion, and grilled chicken slices.
Drizzle with additional sauce if desired.
Serve:
Serve the Chicken Shawarma immediately, either wrapped in the pita bread or as an open-faced sandwich