For the cannelloni with vegetable filling, sauté carrots in oil, add garlic, season with salt, pepper and thyme. Deglaze with wine and boil down over high heat for 2 minutes. Allow to cool.
Stir in peas and ricotta, stuff into cannelloni. Heat butter, sauté onions, add flour, deglaze with soup and cream and bring to a boil. Stir in Parmesan cheese, season with salt and pepper.
Place the cannelloni in a greased baking dish and pour the sauce over them. Bake in the preheated oven at 200 °C for about 45 minutes. Sprinkle the cannelloni with vegetable filling with parmesan shavings.