Cook the tortellini in salted water until al dente.
Chop the onion and fry briefly in a saucepan with a little oil. Add the mushrooms, bell peppers, zucchini and pressed garlic and sauté. Deglaze the whole thing with the sweet cream. Then add the sour cream and tomato paste and season with the spices and herbs.
Mix the tortellini and vegetable mixture, pour into a greased baking dish and sprinkle with cheese. Bake at 200 ° top / bottom heat for about 30 minutes.