Trim the woody ends from the asparagus, usually about 1 1/2 inches. Lightly peel the remaining stalks (this is optional). Spread the spears in a single layer on a baking sheet, drizzle with olive oil, sprinkle with the salt and pepper, and roll to coat thoroughly.
Roast the asparagus until lightly browned and tender, about 8 to 10 minutes, giving the pan a good shake about halfway through to turn the asparagus. Arrange the roasted asparagus on a serving platter and top with some Parmesan.