Use zucchini
I received a very large zucchini and processed it: Diced zucchini meat, place on an oiled baking tray, add halved garlic cloves and leek rings, douse with oil (do not salt). In the oven at 200 degrees soft, but not be mushy. You can use it immediately, if you lift the zucchini cubes with everything under the potato slices and fry the whole thing. You do not need oil anymore. You can also freeze the zucchinis and then use them for soups, pasta dishes ...