when you want the real deal fast and cheap, go to Molca. drive up, take out, or sit on the patio. Everything is so good, though not necessarily good for you (maybe the bean burrito isn't THAT unhealthy). Hook up the hot, marinated carrots and peppers too. Oh, and they're open 24/7 so it's a great stop after the bar!
Pros: cheap, fast, 24 hours