For the dip, peel the shallot and garlic. Dice shallot finely, press garlic through a garlic press. Wash the mint, dab dry and cut the leaves into fine strips. Mix yoghurt, shallot, garlic, mint, 1 tablespoon olive oil and lemon peel. Season to taste with salt, pepper and lemon juice.
Chill the finished dip. Wash sage and rosemary and dab dry. Pluck sage leaves from the stems and cut rosemary into small pieces/twigs. Clean, wash and pat dry the zucchini and eggplant. Cut the aubergine and courgettes into thin slices with a peeler or a slicer (courgettes in about 12 slices each, aubergine in 12 slices.) Drain the feta cheese and cut it into 24 long pieces. Cover with a sage leaf or some rosemary and wrap in two slices of courgette or one slice of aubergine. Fix the rolls with a wooden skewer. Heat 2-3 tablespoons of oil in a pan and fry the rolls in 2 portions until golden brown, turning them over. Add another 1-2 tablespoons of oil to the 2nd portion.
Cover with a sage leaf or some rosemary and wrap in two slices of courgette or one slice of aubergine. Fix the rolls with a wooden skewer. Heat 2-3 tablespoons of oil in a pan and fry the rolls in 2 portions until golden brown, turning them over. Add another 1-2 tablespoons of oil to the 2nd portion. Season with pepper and arrange on a plate. Serve hot or cold with the yoghurt dip and flat bread