Zacatacos
West Lawn
You can smell steak sizzling a block away, and the smoke isn't lying—this might be the best basic taco joint in the whole city, peerless steak tacos, excellent pastor and a few novelties like tacos de papa (mashed potatoes in a crispy shell). There are half a dozen other locations scattered around the south side—the one at 71st and Pulaski, at least, is just as good.