Lamb prepared this way needs no extras for flavor. It is delicious. If you wish, however, you may serve it with Greek lemon sauce or mint jelly. After the initial high heat of 450°F, you may reduce the cooking heat to 350°F as in this recipe or to 325°F, adjusting the cooking time accordingly. Lower temperature makes the lamb even more tender; however, some people find it too mushy when cooked at that temperature so prefer 350 degrees. At 350°F is is still tender and very tasty. If you are cooking less than a 5 pound leg of lamb, do the math and adjust the cooking time and it should come out finished at that time. Insert an instant read thermometer to be sure the meat is done and aim for 130-140°F.