Cut the peppers into strips, halve and fry them in a pan with a little vegetable oil (until they start to roast). Then add the diced onion and fry for a short time. Deglaze with the vegetable stock and put a lid on the pan.
Halve the zucchini and cut into crescent-shaped, approx. 1.5 cm thick pieces and add together with the finely chopped garlic clove. Let the whole thing simmer for about 5 minutes over medium heat. Then add the tomatoes and bring to the boil together with the remaining spices and simmer for 5 minutes.
Take the gnocchi out of the packaging, add them directly to the ratatouille and let cook for 5 minutes. Put the ratatouille on plates or in bowls and sprinkle with the parmesan.