Preheat the oven to 180 degrees Celcius.
Slice zucchini, aubergine, onion, and tomato to 0.5cm.
Mix the tomato sauce, garlic, fresh basil, and salt. Put the sauce in the bottom of the oven container.
Line them up in alternating order and nicely on the tomato sauce. If you have more vegetables or a smaller container, you can put them more tightly together.
Drizzle some olive oil on top and add a pinch of black pepper.
When the oven is at the expected temperature, put it in the oven and cook for 35 mins.
Once the time is up, it's ready to serve.