Fantastic asada, maybe the best in the Valley, and well worth visiting. The best and most popular option is to get a family pack and pick up 1 or 2 pounds.
This is a really basic asada... it's not heavily marinated (or maybe not even marinated at all). But it's perfectly salted, and then cooked up over a charcoal grill.
When you add in the fact that the price is fair (something like $17-19 for a family pack that will feed at least a few people) and the tortillas are good, this place is tops.