Peel the garlic and press it through a garlic press. Wash thyme, dab dry and chop except for a little bit for garnishing. Clean, wash and slice the zucchini diagonally.
Heat 2-3 tablespoons of olive oil in a frying pan, braise garlic and zucchini while turning for about 5 minutes. Season with salt, pepper and thyme, remove from the pan and allow to cool. Peel and roughly dice the onion.
Cut tomatoes and olives into strips. Crumble feta cheese. Place the zucchini in 4 ovenproof dishes and sprinkle with tomatoes, olives, feta cheese and onions. Sprinkle with the remaining olive oil and grill under the preheated grill for 5-8 minutes.
Serve garnished with thyme. Serve with fresh bread.