Thoroughly combine all meat ingredients in a bowl.
Divide into four equal portions and shape into oblong patties about 3” wide, 6” long, 1/2” thick and refrigerate.
Meanwhile make the Tzatziki sauce by placing the whole, unpeeled garlic cloves in a small un-oiled skillet over medium low heat and cook for about two minutes per side - until lightly browned. Peel and chop finely.
Combine the roasted garlic with the rest of the Tzatziki ingredients. Whisk thoroughly.
Grill patties in hot skillet for 3-4 minutes per side. Cut cooked patties into inch wide strips.
Spread tzatziki sauce down the center of a flat bread round, add lettuce or cabbage, sliced tomato and sliced cucumber. Add strips of the lamb patties, fold the bread over the lamb, and enjoy.