01 - Preheat your oven to 425°F (220°C).
02 - In a small bowl, mix olive oil, rosemary, thyme, garlic, Dijon mustard, salt, and pepper to form a paste.
03 - Pat the rack of lamb dry with paper towels. Rub the herb mixture evenly over the entire rack.
04 - Heat a heavy ovenproof skillet over medium-high heat. Sear the lamb, fat side down, for 2–3 minutes until browned. Flip and sear the other side for 2 minutes.
05 - Transfer the skillet to the preheated oven. Roast for 15–18 minutes for medium-rare, or until a meat thermometer registers 135°F (57°C).
06 - Remove from the oven, tent loosely with foil, and let rest for 10 minutes before slicing into individual chops.
07 - Arrange on a platter, sprinkle with fresh parsley, and serve with lemon wedges if desired.