For me, Viet Nam at Broadway and Grant offers the best banh mi in the city, and perhaps the entire Bay Area. Unlike most of the Bay Area’s banh mi spots, Viet Nam doesn’t offer multiple variations of the banh mi sandwich, which many people may find unusual. In most cases, a typical banh mi shop might offer 10 or 12 choices of meat — anything from Asian-style meatballs, to French-style pate, to the more basic roasted preparations. But at Viet Nam, the choice is rather simple: grilled pork, or grilled chicken? The grilled pork is actually marinated tenderloin, wonderfully flavored, cooked to order, served charred and tender, and just as juicy as you could ever hope. The smoky grill advertises itself several doors down, and the dining room is usually quite warm, which can often be a benefit in San Francisco. Cash only.