I challenge anybody to find a better falafel sandwich than the one at Sultan's Market in Wicker Park, 2057 W. North Ave. (1 block West of Damen).
The sandwich: first, a generous slather of hummus; then the freshly fried falafel; and then Jerusalem salad (the salad is pickled for a day or two and takes the raw crunch out of the cucumbers). It all melds beautifully and all for 3 bucks!! The lentil soup is fantastic too (and vegetarian).
This is not a restaurant per se. They do have a couple of tables in the back, however. Rather, this is a corner grocery, or "bodega."
For dessert, walk North to Miko's Italian Ice on Damen between Churchhill and Moffit. It's about a 15-20 minute walk from the Sultan's. The brothers Mike or Rick will take care of you there.