Bar San Marcial is easy to miss. Tucked into a small hallway on Calle San Martzial, you have to duck in and head down a couple of steps to get to the classic wooden bar.
Once there, don't miss their excellent selection of fried things. The best, their house trademark, is the Gavilla. It's a chunk of tenderloin, a slice of ham, and a slice of cheese surrounded by bechamel and fried golden brown.