Halve the zucchini lengthways, hollow out, dice half of the zucchini meat and place in a bowl. Cut the mozzarella into small cubes, add to the zucchini meat and mix well with the salt, pepper, oat flakes and olive oil. Cut the basil leaves into fine strips and mix in as well.
Put the tomatoes in a separate bowl, add the cream and season with the spices. Put the tomato sauce in a baking dish, fill the hollowed out zucchini halves with the mixture and place on the sauce.
Spread the cocktail tomatoes in the baking dish, sprinkle the whole with the grated cheese, lightly pepper and bake in the oven at 180 ° (convection) for approx.