Going to a talk at Columbia on Monday. Need something pretty basic in terms of price -- a place that's cheap and no decor. I like organ meats so a Chinese or Mexican place with tongue or tripe (for example, tongue or tripe tacos) would be great. I noticed on the web a place called Taqueria y Fonda la Mexicana which seems to fit the bill, but any other suggestions would be great. I really don't want to spend much -- since I'm not really going out for dinner but just eating for convenience before the talk -- but I also don't want something generic.