Cut the king oyster mushrooms into slices, wash the zucchini and cut into spaghetti with a julienne cutter, then cut the spring onions into rings.
Heat the olive oil in a pan, add the mushrooms and fry. Deglaze with the cream and then season with salt and pepper. Let the mushrooms boil down briefly, then add the spring onions and zucchini spaghetti to the sauce and let them warm up briefly.
Serve the dish immediately and refine it with freshly grated Parmesan.