Cut the zucchini, eggplant, bell pepper, and tomatoes into half-centimeter thick slices and arrange them in a baking dish.
Add cheese between the slices.
Mix chopped chili, black pepper, thyme, and a little salt into a generous amount of olive oil, and add Italian seasoning if you like. Pour the mixture into the dish.
Keep in the oven at 180 degrees, about half the cooking time. Put some parchment paper over the dish to prevent it from browning too much.
After a while, add grated cheese and let it cook until nicely done.
