After hearing about this place on Chowhound, I decided to give it a try for a quick lunch today while running errands in the Rio Center. While this is definitely not a restaurant, I thought it was worth a new topic for those craving some quick Mexican near 370 in Gaithersburg. Its easy to find and thats about the best thing I can say for its location, since it is inside a Chevron gas station. The lot is cramped, but on the plus side you can fill up your tank and buy soft drinks or snacks at the main store while waiting for your order from the Taco Bar side retail space. The Taco Bar portions h