Preheat your oven to 425°F (220°C).
In a small bowl, combine fresh rosemary, fresh thyme, garlic powder, salt, and pepper.
Pat the lamb chop dry and rub the herb mixture evenly over both sides.
Lightly brush the lamb with 0.5 tablespoon of olive oil to help the herb crust adhere.
Place the lamb chop on a baking sheet lined with foil.
On another baking sheet, spread out trimmed asparagus and diced sweet potato cubes. Drizzle with a remaining light drizzle of olive oil (if desired) and season with a pinch of salt and pepper.
Place both sheets in the oven. Roast the asparagus and sweet potatoes for 20-25 minutes, stirring halfway through, until the asparagus is tender and the sweet potatoes are crispy on the edges.
Simultaneously, broil the lamb chop in the oven for about 6-8 minutes per side (depending on thickness) until it reaches your desired level of doneness.
Remove all items from the oven and let the lamb rest for 5 minutes before serving.
Plate a serving with the lamb chop, a side of roasted asparagus, and crispy sweet potatoes. Enjoy your balanced and flavorful meal!