Steps
1. Preheat your oven to 400°F (200°C).
2. Season the lamb chop with salt and pepper, then brush with olive oil and Dijon mustard.
3. In a small bowl, mix the chopped rosemary and thyme, then press this herb mixture onto both sides of the lamb chop.
4. Place the lamb chop on a baking tray and roast in the preheated oven for about 15-20 minutes for medium-rare, or until your desired doneness.
5. While the lamb is cooking, boil the diced potato in salted water until tender, about 15 minutes.
6. Drain the potatoes and return them to the pot. Add butter, minced garlic, and milk, then mash until creamy.
7. Once the lamb is cooked to your liking, let it rest for 5 minutes before serving.
8. Serve the herb-crusted lamb chop alongside the garlic mashed potatoes.