Wash and clean the zucchini, but do not remove the end of the stem. Cut the zucchini lengthways three times almost to the end of the stem.
Cut the feta cheese into long strips and place them between the zucchini incisions.
Peel the garlic and cut into wafer-thin slices, mix with the herbs, 2 tablespoons of olive oil and freshly ground pepper and brush the zucchini fans with it. Cover and leave to marinate for 30 minutes.
Cut the spring onions diagonally into 2 cm long pieces.
Place the zucchini fans in a baking dish and sprinkle with salt. Put tomatoes, spring onions, olives and the rest of the oil in the baking dish and bake everything for about 20 minutes in the preheated oven at 180 ° O / U.