Place the lamb leg in a pan.
Place the potatoes in the bottom of a large greased roasting pan.
Lay the leg of lamb on top of the potatoes.
Heat the oven to 450º F.
Place the leg of lamb on a platter and allow it to rest 20 minutes before slicing.
While the lamb is resting, you can increase the heat of the oven to a low broil setting and give the potatoes a little extra colour, if needed.
1 Cup barley
1 1/2 teaspoons paprika
1 teaspoon ground black pepper