In a large pan, sauté the onion and leek in the oil. Add the beans, kohlrabi, lemon zest and juice, water and miso paste, bring to the boil, simmer over a low heat for approx. 10 mins. Add the wild garlic and simmer for a further 5 mins. Add the coconut milk, blend the soup, season.
Plate up the soup, garnish with the pistachios, wild garlic and coconut milk (and hemp seeds as desired).