Tokyo has more Michelin stars than any other city on earth — but its street food and convenience store food rival anywhere in the world. Tsukiji Outer Market still serves the freshest sushi for breakfast. Ramen varies by district: Fuunji in Shinjuku for tsukemen, Ichiran for solo booths, Afuri for yuzu shio. Izakayas (Japanese pubs) in Yurakucho under the train tracks are essential.
Depachika (department store basement food halls) at Isetan Shinjuku or Mitsukoshi Ginza are extraordinary — every Japanese regional cuisine represented in one basement. Don't miss yakitori in Yurakucho, tempura in Asakusa, and conveyor belt sushi for the experience.