Lamb is a meat often found in Greek cooking, but you can easily substitute ground beef or ground turkey for this recipe and still retain similar flavors. The ground meat is mixed with garlic, onion, oregano and bacon (yes, bacon!) and then formed into a loaf similar to meatloaf. After baking the loaf is sliced and the pieces broiled to crisp up the edges. Fill a pita with a slice, or two, of the meat, some cool and crunchy tzatziki, tomato and sliced onion.