01 - Preheat the oven to 425°F. Line a large sheet pan with parchment paper or foil for easy cleanup.
02 - In a large bowl, combine the halved potatoes, carrot sticks, and red onion wedges with 2 tablespoons olive oil, half the minced garlic, chopped rosemary, thyme, lemon zest, salt, and pepper. Toss until evenly coated.
03 - Spread the seasoned vegetables evenly across the prepared sheet pan. Roast in the preheated oven for 20 minutes to begin the cooking process.
04 - While vegetables roast, pat the lamb chops dry with paper towels. Rub the chops with the remaining olive oil, garlic, rosemary, thyme, lemon juice, salt, and pepper, ensuring even coverage on both sides.
05 - Remove the sheet pan from the oven. Arrange the seasoned lamb chops and trimmed asparagus among the partially roasted vegetables, tucking them into any available spaces.
06 - Return the sheet pan to the oven and roast for an additional 18-20 minutes. Flip the lamb chops halfway through cooking. Continue until lamb reaches desired doneness and vegetables are tender when pierced with a fork.
07 - Transfer the sheet pan dinner to a serving platter or serve directly from the pan. Garnish with freshly chopped parsley and additional lemon wedges if desired. Serve immediately while hot.