Cook the pasta according to package directions. Peel and dice the onion. Halve, clean and dice the bell bell pepper. Cut the zucchini into slices.
Pour hot water over the tomatoes and remove the skins, cut into cubes. Sauté the onion in melted butter, add the peppers and zucchini and sauté briefly. Pour the pasta into a greased baking dish. Add the vegetables and mix with the pasta. Season with the spices and then spread the feta cheese on top. Bake at 180°C for about 30 minutes.