Overview: Komatsuna is a spinach-like leaf vegetable from Tokyo that's been grown in the ward of Edogawa, facing Tokyo Bay, for hundreds of years. Even today, Komatsuna is grown in residential areas in Tokyo. There are even vending machines selling freshly-harvested Komatsuna! This time, we dive deep into this special vegetable, sampling classic Japanese cuisine, sweets, noodles and other innovative dishes that feature its unique flavor.