To the hot pan, add in 4 tablespoons of the the olive oil, along with the lamb and garlic. Sear all sides of the lamb until browned, about 3-4 minutes. Remove browned lamb, and place cooked lamb onto a baking sheet.
5. Step
Remove garlic and add to food processor with along with the breadcrumbs, parsley, parmesan, rosemary, and 1 tablespoon of olive oil. Pulse until combined. Pour onto a large plate.
6. Step
Brush the top and sides of the lamb with mustard.
7. Step
Coat the top and sides of the lamb with the breadcrumb mixture and roast in oven for 20-25 minutes.