Slice eggplant, zucchini, tomato, bell pepper, and onion thinly.
Heat olive oil in a pan and sauté onion and bell pepper.
Spread tomato sauce on the bottom.
Arrange the prepared vegetables in a circular pattern on top of the sauce.
Sprinkle with herbs, salt, and pepper.
Bake in a preheated oven at 180°C for 25 minutes.