Cut the zucchini into quarter rings. Remove seeds from peppers, cut into 4 pieces.
Put all the vegetables in a deep bowl, add olive oil and squeeze the garlic. Sprinkle with spices for the grill, salt. Even without salt, it's delicious. Mix well.
Put on a baking sheet or in a baking dish and put in a preheated oven. Set the temperature to 180°C and grill time to 15 minutes.