King of Thai Noodle House • 1994

This no-frills Union Square noodle house has been slinging pan-fried noodles and Thai boat noodle soup since opening in March 1994 as San Francisco's first Thai noodle house. Owner Sara Tahng serves up authentic street food-style dishes like pad see ew, duck noodle soup, and the house specialty pan-fried noodles at prices that make it a favorite for late-night cravings and post-shopping hunger pangs. The mango sticky rice alone is worth the trip, and the place stays open until well past midnight most nights.