This simple yet delicious recipe is perfect for a quick and healthy side dish. Preheat your oven to 400°F. Wash and trim the asparagus spears, then place them on a baking sheet. Drizzle with olive oil and sprinkle with salt and pepper. Roast for 10-15 minutes, or until tender. Remove from the oven and sprinkle with freshly grated Parmesan cheese. Serve immediately.