Wash the asparagus; cut off woody ends (about 1-2 inches) and discard.
Spread the asparagus spears on a shallow baking sheet lined with parchment paper. Drizzle with 1-2 tablespoons extra virgin olive oil. Place in oven and bake for 10 minutes.
Remove from oven and place the spears on a serving plate. Drizzle 1-2 tablespoons balsamic vinegar over the spears. Salt and pepper to taste and sprinkle the Parmesan cheese over the asparagus.
Serve with a wedge of lemon, if desired.
Notes
Asparagus is easy to "trim" - just snap the bottoms where they naturally want to break to remove the woody ends.