Trim the fat from lamb, and place, meat side up, on broiler pan. Insert meat thermometer into the thickest part of lamb, making sure thermometer does not touch bone. Set aside.
Combine mustard, honey, and garlic; stir well. Spread mustard mixture over lamb. Combine breadcrumbs and next 3 ingredients; stir well. Pat breadcrumb mixture into mustard mixture on lamb.
Bake lamb at 425° for 40 minutes or until thermometer registers 140° (rare) to 160° (medium-well). Slice into 8 chops; serve with Herbed Jelly, and garnish with rosemary sprigs, if desired.