Many popular eateries in Vietnam only feature one dish on their menus. The lack of variety does not deter their loyal customers. In fact, quite the opposite. Most of these places have customers wrapped around the block day and night. Martin joins the enthusiastic diners and samples the many one-dish wonders of Vietnam. Recipes: Vietnamese Beef Hot Pot, Steamed Rice Noodles with Mushrooms & Chicken, Nuoc Cham Fish Sauce.