1. Heat the truffle oil with the minced garlic cloves in a frying pan, then brown the minced onions with truffle salt and pepper.
2. Cut the vegetables into thin slices, and cut the mozzarella into slices.
3. Place the onions in the bottom of a baking dish.
4. Place the vegetables in the dish, alternating tomato, zucchini, eggplant and mozzarella until the entire dish is filled.
5. Drizzle generously with truffle olive oil, truffle salt and pepper.
6. Bake for 1 hour at 200°C
7. Add fresh basil as a topping! Enjoy!