We prepare the ingredients. Grind onions, parsley, squeeze the garlic, beat the egg easily, rub the cheese. Preheat the oven to 160 degrees.
We combine all the ingredients. Mix gently.
From the resulting mass, we make about 16 balls.
We spread the balls on a baking sheet greased with vegetable oil. Bake for about 20 minutes.
Pour tomato sauce into a deep pan with a thick bottom. Carefully dip the balls in tomato sauce and simmer for another 20 minutes until tender.