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 potatoes, carrots, and red onion with 2 tablespoons olive oil, half the garlic, rosemary, thyme, lemon zest, salt, and pepper. Toss 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 lamb chops dry with paper towels. Rub with remaining olive oil, garlic, rosemary, thyme, lemon juice, salt, and pepper.
05 - Remove sheet pan from oven. Arrange lamb chops and asparagus among the partially roasted vegetables, ensuring even spacing.
06 - Return to oven and roast for 18-20 minutes, flipping lamb chops halfway through. Cook until lamb reaches desired doneness and vegetables are tender.
07 - Transfer to a serving platter. Garnish with fresh chopped parsley and extra lemon wedges if desired. Serve immediately.