Clean, wash and dry the zucchini and cut them into pieces, except for about 75 g. Coarsely grate the rest of the zucchini. Peel and chop onion. Heat the fat in a pot and fry the onion until transparent.
Add pieces of zucchini, braise and deglaze with stock. Simmer covered for 8-10 minutes. In the meantime clean, wash and slice the cherry tomatoes. Wash the herbs, dab dry, chop and stir into the cream cheese.
Form 8 small cams with 2 teaspoons. Finely puree the zucchini in the stock, stir in the crème fraîche and season to taste with salt and pepper. Arrange the soup with tomato slices, zucchini rasp and cream cheese nocks in deep plates.