"Union Square’s Pinecrest Diner is one of San Francisco’s longest-running 24-hour restaurants — and though the all-night schedule only runs four days a week for now, owner Peter Foundas, whose parents opened the diner after moving to San Francisco from Greece by way of New York City, is committed to making it a 24-hour spot seven days a week once more. The menu has been pared back to the basics like breakfast all day and an eclectic collection of dinner entrees including fried chicken, spaghetti Bolognese, and burgers. But it’s enough to draw lines even during late-night peak hours." - Lauren Saria