01 - Set oven to 425°F and line a baking sheet with parchment paper or foil.
02 - Arrange asparagus spears in a single layer on the prepared sheet. Drizzle with olive oil, sprinkle with salt and pepper, then toss to coat evenly.
03 - Roast in the oven for 12–15 minutes until tender and lightly browned, shaking the pan halfway through cooking.
04 - Remove from oven and immediately sprinkle with Parmesan, lemon zest, and drizzle lemon juice over the asparagus.
05 - Serve warm, optionally garnished with extra Parmesan or lemon wedges.