Pinecrest Diner

This Union Square diner bordering the Tenderloin feeds all walks of life, 24 hours a day, from hungry tourists to throngs of partiers after they leave the nearby club Ruby Skye, which lets out at 4am on the weekend. All-day breakfast, with decent hash browns, is the popular pick, but don’t ask for any poached or boiled eggs—they don’t serve any. Blame the diner’s illustrious and dark history: in 1997, a cook shot and killed a waitress after an argument over an order of poached eggs. (Maybe go for one of their Niman Ranch beef burgers instead.)