I would recommend a Jianbing. This is an extremely popular Chinese street food that was really hard to find outside of China; allegedly they are getting more popular worldwide though. Chicago has one of this on the basement floor of that mall in the Loop (at Lake I believe?)
Cooking method is very similar to a savory crepe, you cook it on a large, round heating iron & spread the mix, brush the sauce on, place one of those crunchy... things, add any stuffing, and it's done. Ppl usually put meat as stuffing but a vegetarian one should work too
I have never made this myself so I can't give a recipe... Maybe there are tutorials on YouTube