Wash the zucchini. Peel onions. Cut a lid off the vegetables, hollow out the vegetables. Cook zucchini and onion, without lid, in salted water for about 10 minutes. Quench and drain
Chop the hollowed out flesh. Heat 1 tablespoon of oil in a frying pan. Sauté the flesh for 3-4 minutes, season with salt and pepper and place in a bowl.
Wash the mint, shake dry and cut the leaves into small pieces. Roast the nuts in a pan without fat, take them out and chop them roughly. Stir cream cheese, mint and about 3/4 of the nuts into the pulp. Season with salt and pepper
Fill onions and courgettes with the mixture. Place the vegetables in a greased ovenproof dish and sprinkle with the remaining nuts. Place vegetable lid on the bottom of the dish and sprinkle with 3 tbsp. oil. Cook the vegetables in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for 20-30 minutes. Remove, place the respective lids on the vegetables and serve