01 - Set oven to 425°F. Line a large rimmed baking sheet with parchment paper.
02 - Spread asparagus spears and carrot sticks across the prepared baking sheet in a single, even layer.
03 - Drizzle olive oil evenly over vegetables. Sprinkle with sea salt, black pepper, garlic powder, and dried thyme. Toss vegetables gently to coat thoroughly.
04 - Roast for 22 to 25 minutes, tossing vegetables halfway through cooking time. Remove when vegetables are tender and edges show light caramelization.
05 - Transfer roasted vegetables to a serving platter. Top with fresh parsley and lemon zest. Serve immediately while hot.