Preheat your oven to 400°F (200°C).
Prepare the vegetables by washing and slicing them.
In a large bowl, combine sliced tomatoes, eggplants, and zucchinis with salt, pepper, and olive oil.
Add the minced garlic to the vegetable mixture.
Transfer the mixture to a baking dish and spread it evenly.
Sprinkle the grated Parmesan cheese generously over the top.
Bake in the preheated oven for 30-40 minutes or until the vegetables are tender and the top is golden.
Remove from the oven and let sit for a few minutes before serving, garnished with fresh basil.