Just got back from a trip to Cabo San Lucas where we just had some very authentic cuisine for comparison. The food at this market is pretty damn comparable to what we ate there. It is a Mexican supermarket that also serves hot food in the back. They have the usual carne asada, carnitas, al pastor, pollo, etc served in all different ways. I have to say the carne asada was my favorite, only because they didn't serve their al pastor with sliced pineapple like I usually prefer it. Very good overall. Their agua frescas are delicious as well.
You can also buy marinated meat by the lb to cook at home and the prices are pretty good.
My boyfriend works near by and I'm looking forward to him bringing some tacos home for dinner now and then!