I am from South Texas and I know great Mexican food. While there are a lot of Mexican food restaurants in Austin, I often long for the particular flavor and style of South Texas cooking that I grew up with. With the help of a friend who is in the know, I have found it! El Taquito on East Riverside (not far from I35). Mind you, the place is certainly low-brow, but the food is as genuine as it comes. Dirt cheap too. For the crowd that needs food after the bewitching hour, it is open late. The queso fundido is a must (add meat).