What is Komatsuna?
Komatsuna (Brassica rapa var. perviridis) is an incredibly hardy green, referred to as  Japanese mustard spinach , although it really isnt spinach but a member of the Brassica family, and grown year round in many climates.
What Does Komatsuna Taste Like?
The plant is utilized for both its tender leaves as well as its flowering stems and can be eaten raw or cooked. The leaves can be harvested at any stage and can be snipped one at a time or the entire head can be taken. If you take just a few leaves, they will regrow and extend the length of time you have to harvest. The flavor of komatsuna is somewhere between that of a mild mustard and cabbage combination. The young tender leaves can be mixed with other greens for salads or use more mature leaves in stir fries.