Peel and dice the onions and garlic. Heat 3 tablespoons of water, sauté the onions and garlic in it, let cool a little.
Wash, clean and spin dry the rocket, remove hard stalks and finely chop the leaves. Peel and grate the zucchini.
Knead the prepared ingredients with the tartare, herbs, egg and breadcrumbs, season with salt, pepper and shape into flat meatballs. Heat a coated pan without fat and fry the meatballs on both sides over a medium heat for 8-10 minutes.