Preheat your oven to 425°F (220°C).
Rinse the asparagus under cold water to clean.
Trim the tough ends of the asparagus stalks.
Place the asparagus on a baking sheet lined with parchment paper.
Drizzle olive oil over the asparagus evenly.
Sprinkle sea salt, black pepper, and garlic powder if using.
Toss the asparagus gently to coat them in oil and seasonings.
Spread the asparagus in a single layer on the baking sheet.
Bake in the preheated oven for 15-20 minutes, or until tender.
Remove from the oven and drizzle with lemon juice before serving.