In a small bowl, combine: breadcrumbs, rosemary, thyme, garlic, 1 teaspoon salt, 1/4 teaspoon pepper and 2 tablespoons of olive oil (to moisten the mixture). Set aside.
Season rack of lamb with salt and pepper. Use an oven proof skillet (I like to use cast iron) to heat 2 tablespoons olive oil over high heat. Sear rack of lamb for two minutes per side. Set aside to cool slightly.
Cover bones with foil- to prevent discoloration during roasting.
Brush Dijon over rack of lamb and evenly coat with breadcrumb mixture.
Place lamb, bone side down back into pan and roast in oven for approximately 12-18 minutes (depending on how done you like your meat)- use a meat thermometer placed into the center of the meat to check doneness.
Remove meat from oven and let rest for 5-10 minutes, covered before cutting rack between ribs.