Wash the tomatoes, cut off a lid and hollow out the tomatoes with a ball cutter. Wash quinoa and cook in salted water according to the instructions on the packet. Pour the quinoa in a sieve and drain
Wash the coriander, shake dry and cut the leaves into strips. Wash, clean and chop the zucchini. Cook the beans in boiling salted water for 3-4 minutes. Add peas and diced zucchini after about 2 minutes. Drain vegetables. Cut the beans into small pieces
Wash and clean spring onions and cut into rings. Mix quinoa, 2 tablespoons of oil, vegetables, onions and coriander, season with salt and pepper. Fill the tomatoes with the mixture, put the lid on and sprinkle with 3 tablespoons of oil. Place the tomatoes in a greased, ovenproof dish and cook in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for 20-25 minutes.