Komatsuna, or Japanese Mustard Spinach, is a versatile leafy green with dark green leaves and pale green stems. It has a tender, crisp texture and a sweet, mild flavor with just a hint of mustardy bite, less pungent than other mustard greens. It is fantastic in stir-fries, steamed dishes, soups, and is also commonly pickled in Japan. Rich in Vitamin C and calcium, it is a nutritious and flavorful addition to any meal.