I usually come here for guacamole(amazing), octopus(well-cleaned and cheap) or seafood(quality). Definitely check out the meat and seafood section here!
Great lunch spot: they also offer delicious and cheap take-out or lunch items... I adore the fish tacos, pork and huge burritos(better than what you'll find at most of the area's food trucks). I've tried many other things here--never disappoints.
But, beware, basic items here are overpriced... so I'd advise getting in and out AQAP.