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 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 on the prepared sheet pan. Roast for 20 minutes to begin 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.
05 - Remove the sheet pan from the oven. Arrange lamb chops and asparagus among the partially roasted vegetables.
06 - Return to the oven and roast for an additional 18-20 minutes. Flip lamb chops halfway through cooking 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.