Rinse the quinoa under cold water, then combine with 0.5 cup water in a small pot; bring to a boil, reduce to a simmer, cover, and cook for 15 minutes.
Preheat a skillet over medium-high heat with half of the olive oil.
Toss the asparagus spears with a pinch of salt and pepper, then sauté in the skillet for 5-7 minutes until tender-crisp and slightly charred.
Pat the cod fillets completely dry with a paper towel and season both sides evenly with garlic powder, turmeric, salt, and pepper.
Remove asparagus from the pan, add the remaining olive oil, and place the cod in the hot skillet.
Sear the cod for 3-4 minutes per side until the exterior is golden brown and the fish flakes easily with a fork.
Fluff the cooked quinoa with a fork and plate it alongside the roasted asparagus.
Place the golden cod on top, squeeze the fresh lemon juice over the entire plate, and garnish with chopped parsley.