Azhong Mianxian is a noodle shop in Ximending, Taipei, that serves one dish: thin, soft noodles with gopchang, cilantro, and a spicy sauce. At the counter, you choose small or large, pay in cash in advance, and hand the ticket to the staff member next to you to receive your food. When it gets crowded, there are no seats and you eat standing. The shop is in Wanhua District.