01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly grease it.
02 - Arrange the trimmed asparagus spears in a single layer on the prepared baking sheet.
03 - Drizzle olive oil over the asparagus, then sprinkle with salt and black pepper. Toss gently to coat evenly.
04 - Roast in the oven for 12–15 minutes, or until the asparagus are tender and lightly browned.
05 - Remove from the oven and immediately sprinkle with grated Parmesan cheese and lemon zest.
06 - Serve warm, garnished with lemon wedges on the side.