Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Trim the woody ends off the asparagus and place them on the baking sheet along with the cherry tomatoes.
Drizzle the vegetables with extra virgin olive oil and season with half of the sea salt and black pepper.
Pat the cod fillets dry with a paper towel and place them in the center of the baking sheet, nestled among the vegetables.
In a small bowl, whisk together the melted ghee, lemon juice, lemon zest, minced garlic, and chopped parsley.
Pour the lemon-herb sauce evenly over the cod fillets and season the fish with the remaining salt and pepper.
Bake for 12 to 15 minutes, or until the fish is opaque and flakes easily with a fork and the tomatoes have just begun to burst.
Serve the baked fish and roasted vegetables over a bed of warm, fluffy cooked quinoa.