Wash and slice the zucchini and cut them into thin strips. Clean and trim the mushrooms and halve or quarter them depending on size. Peel and halve the onion and cut it lengthwise into thin strips. Prepare pasta in boiling salted water according to package instructions. Add zucchini about 2 minutes before the end of cooking time.
Heat 2 tablespoons of oil in a large frying pan. Fry the mushrooms for 5-6 minutes. Add the oyster mushrooms about 3 minutes before the end of the cooking time. Remove 1/3 of the mushrooms and set aside. Deglaze mushrooms with cooking cream and let them simmer for about 5 minutes. Add sugar snap peas about 2 minutes before the end of the cooking time.
Heat 1 tablespoon of oil in a frying pan. Fry the onion for about 3 minutes, then deglaze with vinegar. Let simmer for 1-2 minutes until the vinegar is overcooked. Add the remaining mushrooms to the onions, season with salt and pepper.
Wash the parsley, shake dry and cut the leaves into strips. Season mushroom sauce with salt and pepper. Drain pasta and zucchini. Mix the mushroom sauce, cranberries and pasta and courgette mixture in a saucepan. Add onion mix and parsley, fold in briefly and arrange on plates.