Finely chop the onion. Chop the garlic.
Finely chop the mushrooms.
Grate the cheese on a coarse grater.
Heat a frying pan and fry the onion and garlic in vegetable oil for 3 minutes.
Add the mushrooms to the pan and fry for another 3 minutes.
Add minced meat to the onions and mushrooms. Fry everything together until done. Salt and pepper.
Cool the filling a little and stuff the cannelloni with it. Add chopped herbs to the filling if desired.
Now make the sauce: mix tomato juice and sour cream.
Place the cannelloni in a baking dish in a single layer and pour over the sauce.
Sprinkle the cannelloni with grated cheese. Cover the dish with foil and bake the dish in the oven for 30-40 minutes.
5 minutes before the end of cooking, remove the foil from the pan and let the cheese brown. Cannelloni with minced meat and mushrooms are ready.
Garnish the finished dish with cherry tomatoes.