1 Preheat oven to 400°F. Heat remaining 1 tablespoon olive oil in heavy large ovenproof skillet over high heat. 2  Add lamb; cook until browned, about 3 minutes per side. 3  Transfer skillet to oven and roast lamb chops to desired doneness, about 10 minutes for medium-rare. Let marinate at room temperature at least 30 minutes and up to 1 hour. 2  Preheat oven to 400°F. Heat remaining 1 tablespoon olive oil in heavy large ovenproof skillet over high heat. 3  Add lamb; cook until browned, about 3 minutes per side.