Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Trim the tough, woody ends off the asparagus and place the spears on one side of the prepared baking sheet.
Pat the cod fillets dry with a paper towel and place them on the other side of the baking sheet.
In a small bowl, whisk together the extra virgin olive oil, fresh lemon juice, lemon zest, minced garlic, dried oregano, sea salt, and black pepper.
Drizzle the herb mixture evenly over both the cod and the asparagus, using your hands or a brush to ensure the asparagus is well coated.
Bake in the center of the oven for 12 to 15 minutes, or until the cod is opaque and flakes easily with a fork.
Serve the roasted cod and asparagus over a bed of warm cooked quinoa, finishing with an extra squeeze of lemon if desired.