Preheat your oven to 400°F (200°C).
Peel and chop the carrots and parsnips into uniform 1-inch pieces.
Place the vegetables on a baking sheet and toss with 0.25 tbsp of olive oil and half of the salt and pepper.
Roast the vegetables for 20-25 minutes, tossing halfway through, until they are tender and golden brown.
While vegetables roast, finely mince the rosemary, thyme, and garlic.
In a small bowl, combine the minced herbs and garlic with the remaining 0.25 tbsp of olive oil and the remaining salt and pepper.
Pat the lamb chops dry with a paper towel and rub the herb mixture generously onto all sides of the meat.
Heat a heavy skillet or cast-iron pan over medium-high heat.
Sear the lamb chops for 3-4 minutes per side for medium-rare, or until they reach your desired level of doneness.
Remove the lamb from the pan and let it rest for 5 minutes to allow the juices to redistribute before serving with the roasted root vegetables.