Wash the zucchini and cut them into round slices. Peel the onions and chop them finely.
Heat the oil, saute the onions and zucchini, leave the, to cool. Sprinkle with a little salt and black pepper.
Stir well to make a smooth mixture. Mix with the sauteed onions and zucchini, transfer to a suitable tray smeared with oil.
Bake in a preheated 356°F (180 °C) oven about 30 min. until reddened.
It's so tasty, try it!