1.Combine the oil, coriander and cumin in a small bowl. Season with salt and pepper. Place the lamb in a shallow glass or ceramic dish and pour over the coriander mixture. Turn the lamb to coat. Cover with plastic wrap and place in the fridge for 2 hours to develop the flavors.
2.Meanwhile, combine the mayonnaise, garlic, parsley, lime juice and chilli in a small bowl. Cover with plastic wrap and place in the fridge until ready to serve.
3.Preheat a barbecue or char grill pan on high. Pat the lamb gently with paper towel to remove any excess oil. Cook on preheated grill for 4 minutes each side for medium-rare or until cooked to your liking. Transfer to a warm plate, cover with foil and set aside for 10 minutes to rest.
4.Place the salad leaves in a serving bowl. Add the feta, onion and olives, and gently toss until just combined. Thinly slice the lamb across the grain and arrange on the salad. Top with a dollop of the mayonnaise and sprinkle with mint leaves to serve.

Note: Cooking Time: 15-20 minuts, Serving: 3-4 persons