Simply put, this is the best lunch spot in Pittsburgh. You could eat here every day and not get sick of the food. Istanbul Grille uses the freshest ingredients and everything is made from scratch.
Aside from the impeccable quality of the food, the staff is extremely friendly and helpful, especially if it is your first time. The owner, Josh, is incredibly generous and will make sure that you want to come back again and again.
They are cash only but there are PNC ATMs upstairs, so hit them before you go down the escalator.