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 potatoes, carrots, and red onion. Toss with 2 tablespoons olive oil, half the minced garlic, chopped rosemary, thyme, lemon zest, salt, and pepper until evenly coated.
03 - Spread the seasoned vegetables evenly across the prepared sheet pan. Roast for 20 minutes to begin the cooking process.
04 - While vegetables roast, pat the lamb chops dry with paper towels. Rub with remaining olive oil, garlic, rosemary, thyme, lemon juice, salt, and pepper on both sides.
05 - Remove the sheet pan from the oven. Arrange the seasoned lamb chops and trimmed asparagus among the partially roasted vegetables, ensuring even spacing.
06 - Return the pan to the oven and roast for 18-20 minutes more. Flip the lamb chops halfway through cooking. Cook until lamb reaches desired doneness and vegetables are tender.
07 - Transfer to a serving platter or plates. Garnish with freshly chopped parsley and additional lemon wedges if desired. Serve immediately while hot.