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