This otherwise nondescript taco stand attracted national recognition during the 1970s, when Julia Child said it was one of her favorite places to eat. The first thing you notice upon entering is the "pat-pat-pat sound of fresh tortillas being made to order." Tacos are often available with unusual fillings like cactus paddles or Petrale sole. It's a very popular place, and the lines can be excruciatingly long, so we suggest that you arrive close to opening time.