Heat the oil in a wide pan. Sauté the onion and sage, add the potatoes and kale, continue sautéing for approx. 5 mins. Add the Vermouth and reduce almost completely. Pour in the stock, bring to the boil, add the mushrooms, cover and simmer gently for approx. 25 mins. Add the spinach, allow to wilt, purée the soup.
In a non-stick frying pan, gently fry the bacon until crispy, remove. Heat the oil in the same pan. Add the mushrooms, fry for approx. 4 mins., add the sage, cook briefly, remove, season with salt. Serve the soup in bowls, garnish with sour cream, bacon, mushrooms and Micro Greens.