Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Trim the tough, woody ends off the asparagus spears and spread them out on one side of the prepared baking sheet.
Place the salmon fillet on the other side of the baking sheet, ensuring there is space between the fish and the vegetables.
Drizzle the extra virgin olive oil and fresh lemon juice over both the salmon and the asparagus spears.
In a small bowl, whisk together the dried oregano, garlic powder, sea salt, and black pepper.
Sprinkle the herb seasoning mixture evenly over the salmon fillet and the asparagus, tossing the asparagus slightly to coat.
Bake in the center of the oven for 12 to 15 minutes, or until the salmon is opaque and flakes easily with a fork and the asparagus is tender.
Remove from the oven and garnish with freshly chopped parsley before serving immediately.