Preheat flame broil or cast press container to medium-high heat.
Toast the burger buns inward the surface of the bread until brilliantly dark. Spread olive tapenade on buns to taste.
Sprinkle salt and pepper on sheep patties and barbecue or sear for 3 to 4 minutes for each side. Let cool for a couple of minutes at that point and put on buns.
Top every burger with ½ ounce feta crumbles, a squeeze of mint leaves, sliced red onion and a couple of cuts of tomato.