Slice eggplant, zucchini, tomato, onion, and bell pepper thinly.
Sauté chopped onion and minced garlic in a pan with olive oil.
Add chopped tomato and herbs (thyme, basil, rosemary) to make the sauce.
Spread the sauce in an oven-safe dish.
Arrange the sliced vegetables in layers on top of the sauce.
Drizzle with olive oil and sprinkle with salt and pepper.
Bake in a preheated oven at 180°C for 30 minutes.