I'll be in Chicago (Wheaton) and would love to know of any must-visit hole in the wall type places.
Some favorites from trips to other places: Pine State Biscuits in Portland (small shop, best biscuits sandwiches) or Sweet Georgia Brown for BBQ in Dallas (family run place, outstanding BBQ).
I'm looking for that place that does the best "X". That specializes in something amazing and will be a memorable food experience. I'm not looking for anything fancy that needs reservations. Just something I can stop in at, get a bite or a meal, and go on my way! :)
Open to all types of cuisines and foods.
Anything come to mind?
Edit to add: I'm in town for a couple days, so I won't have a lot of time. Just looking for that one spot that you'd tell someone to bee-line to! :)