I'll be in Oak Lawn in a few days near St. Xavier University. Willing to drive a short distance (not all the way into downtown Chicago) and looking for a local, hole-in-the-wall, unique, inexpensive, perhaps ethnic restaurant. Suggestions? I'm an adventurous eater and don't care so much about the ambiance. Just want something interesting. [Can be lunch, late afternoon meal, or early dinner.] Thanks!