The location was Johnnie's Chicago Red Hots (and if you read Jon Talton's High Country Nocturne it was a secret FBI office for a short while) but now it's a Pita Pit. They had a booth at this year's Willo Home Tour and were giving out coupons. You can order online and specify in detail what you want in your pita. The coupon claimed to work online but it didn't. The restaurant did honor it when I brought it in though. The place is more or less a Subway for pitas. The pitas are huge, very generous with the veggies. They're thin though and more like a crepe than a pita. Definitely worth going back, although I'm going to have to tweak the ingredients to get the taste right. There is so much flexibility in what you can ask for that it is not difficult to come up with a bad combination.