01 - Preheat the oven to 425°F and line a baking sheet with parchment paper.
02 - Place trimmed asparagus spears in a single layer on the prepared baking sheet.
03 - Drizzle olive oil over asparagus, then sprinkle with sea salt and black pepper. Toss gently to coat evenly.
04 - Roast for 12 to 15 minutes until tender and lightly caramelized, shaking the pan halfway through cooking.
05 - Remove from oven and immediately sprinkle with lemon zest and a squeeze of lemon juice.
06 - If desired, top with grated Parmesan cheese before serving.