In a large bowl, combine bread crumbs, garlic, rosemary, 1 teaspoon salt and 1/4 teaspoon pepper. Toss in 2 tablespoons olive oil to moisten mixture. Set aside. Season the rack all over with salt and pepper. Heat 2 tablespoons olive oil in a large heavy oven proof skillet over high heat. Sear rack of lamb for 1 to 2 minutes on all sides. Set aside for a few minutes. Brush rack of lamb with the mustard. Roll in the bread crumb mixture until evenly coated.
For the lamb, place the lamb steak into a bowl, rub with the olive oil and season with salt and freshly ground black pepper. Heat a griddle pan and chargrill the steak for 5-6 minutes on each side, or until cooked to your liking. Leave to rest for five minutes.
Add lamb; turn to coat. Let marinate at room temperature at least 30 minutes and up to 1 hour. Preheat oven to 400Â°F. Heat remaining 1 tablespoon olive oil in heavy large ovenproof skillet over high heat. Add lamb; cook until browned, about 3 minutes per side.Transfer skillet to oven and roast lamb chops to desired doneness, about 10 minutes for medium-rare.Transfer lamb to platter, cover, and let rest 5 minutes.1  Recipe by Maria Helm Sinskey.dd lamb; cook until browned, about 3 minutes per side. Transfer skillet to oven and roast lamb chops to desired doneness, about 10 minutes for medium-rare. Transfer lamb to platter, cover, and let rest 5 minutes. 1  Recipe by Maria Helm Sinskey.