Verdure gratinate al forno is a traditional vegetable dish originating from Italy. The dish has many versions, but it's usually made with a combination of eggplant, zucchini, potatoes, onions, carrots, olive oil, Parmigiano-Reggiano, bread, basil, and salt.
The vegetables are washed, peeled, and cut into cubes or slices. They're placed in a bowl, seasoned with salt, mixed with ground bread, cheese, and olive oil, and then mixed or tossed well. Once prepared, the vegetables are placed on a baking sheet and baked for about half an hour.