A gratin made with eggplant, onion, zucchini, egg, and tomato, with oatmeal for a creamy texture.
Cut the vegetables into cubes.
Stir-fry the vegetables starting with the hardest ones.
Add tomato sauce and a small amount of water, then add oatmeal.
Be careful as oatmeal absorbs water quickly—when it becomes soft, add 2 eggs and sprinkle cheese on top to finish.