So good, you've got to say it twice, Tan Tan Fast Food is everything a late-night venue should be: big, cheap and fast fast. This Chinatown diner serves mostly Vietnamese dishes with some Cantonese options, but be forewarned: There are over 400 dishes to choose from (87 in the soups category alone!). The thick-as-a-Bible menu offers up such long-winded items as pork kidney and shrimp macaroni, various pork parts, panfried noodles and Cantonese-style beef ball with flat rice noodle soup. Best part is, it's all served until 2 a.m. Sunday through Thursday, and until 3 a.m. on Friday and Saturday. The ambience is classic, eclectic diner: disco-style Christmas lighting that flickers on and off, red paper lanterns hanging about the counter, and three fake palm trees with stuffed monkeys sitting in them. The final touch is the wall-size murals of large fish and waterfalls that are rigged to look like they're actually moving -- perfect to stare at after a few beers on a late Friday night.