Prepare the Ingredients: Gather all your ingredients. Rinse the cod fillets under cold water and pat them dry. Slice the onion thinly, grate the ginger, and crush the garlic.
Sauté Aromatics: In a large skillet, heat the olive oil over medium heat. Add the sliced onion and sauté until translucent, about 5 minutes. Stir in the ginger and garlic, cooking for an additional minute until fragrant.
Create the Coconut Lemon Sauce: Pour in the coconut milk while stirring. Add the juice and zest of the lemon, seasoning with salt and black pepper. Allow the sauce to simmer gently for about 5 minutes.
Bake the Cod Fillets: Preheat your oven to 200°C (400°F). Place the cod fillets in a baking dish, then pour the coconut lemon sauce over them. Bake for approximately 15-20 minutes until the fish flakes easily with a fork.
Serve and Enjoy: Once baked, let it rest for a few minutes before serving. Garnish with additional lemon zest or fresh herbs if desired. Enjoy with steamed rice or a fresh salad.