Roast Boneless Leg of Lamb with Garlic, Herb, and Bread Crumb Crust

Adjust oven rack to lower-middle position and heat oven to 375 degrees. Meanwhile, in workbowl of food processor fitted with steel blade, process 1 teaspoon of olive oil with garlic, rosemary, thyme, and parsley until minced, scraping down bowl with rubber spatula as necessary, about 1 minute. Remove 1 1/2 tablespoons herb mixture to small bowl and reserve. Scrape remaining mixture into medium bowl; stir in cheese, bread crumbs, and 1 tablespoon olive oil, and set aside.

Lay lamb with rough interior side (which was against bone) facing up on work surface; rub with two teaspoons olive oil, and season with 1½ teaspoons kosher salt and ½ teaspoon pepper. Spread reserved 1½ tablespoons herb mixture evenly over meat, leaving 1-inch border around edge. Following illustrations 2 and 3, roll roast and tie, (see "How to Tie a Roast," below). Season tied roast generously with 1½ teaspoons kosher salt and ½ teaspoon pepper, then rub with remaining 1 tablespoon oil.

Place roasting rack on rimmed baking sheet. Heat 12-inch heavy-bottomed skillet over medium-high heat until very hot, about 3 minutes. Sear lamb until well browned on all sides, about 2 minutes per side; then, using tongs, stand roast on each end to sear (see illustration 4), about 30 seconds per end. Transfer to rack and roast until instant-read thermometer inserted into thickest part registers 105 to 110 degrees, 30 to 35 minutes. Transfer lamb to cutting board; following illustration 5, remove and discard string. Brush lamb exterior with mustard, then, following illustration 6, carefully press herb and bread crumb mixture onto top and sides of roast with hands, pressing firmly to form a solid, even coating that adheres to the meat. Return coated roast to rack; roast until instant-read thermometer inserted into thickest part of roast registers 125 degrees (medium-rare), 10 to 15 minutes longer. Transfer meat to cutting board, tent with foil, and let rest 10 to 15 minutes. Cut into 1/2-inch slices and serve.