With a vegetable peeler, peel the bottom half of the asparagus stalks.
Place in a jelly roll pan, in a single layer. Drizzle with olive oil and sprinkle with salt and pepper.
Bake at 400ºF for 10 minutes. Turn the asparagus over and roast for 8 to 10 minutes more, or until the asparagus are tender but slightly crisp. If using smaller, slim-stalked asparagus, roasting time will be less.