Roughly chop the garlic and onion, dice the zucchini. Sweat the onion and zucchini in a saucepan with oil, add a little salt at this point. Add the garlic just before deglazing so that it doesn`t get bitter.
Pour approx. 0.5 liters of vegetable stock and season with honey, salt and pepper. Simmer for 10 - 15 minutes over medium heat.
In the meantime, dice the sheep`s cheese and chop the parsley. Crack the walnuts and roast the kernels in a pan. Then puree the vegetables, add a splash of lemon juice, season to taste again, refine with the sour cream.
Serve the soup with cubes of sheep`s cheese and roasted walnuts, sprinkle with chopped parsley before serving. Serve with fresh bread.
For the vegan variant, I replace the sheep`s cheese with falafeltaler (available in organic shops, for example) and leave out the sour cream and honey.