1Begin by finely chopping the onion and mincing the garlic cloves.
In a large pan, heat a little oil over medium heat and sauté the onion until translucent.
Add the minced garlic and curry powder to the pan, stirring for about 1 minute until fragrant.
Pour in the coconut milk and bring the mixture to a gentle simmer.
Add the cod fillets to the pan, cover, and cook for about 5-7 minutes, or until the fish is cooked through and flakes easily.
Stir in the fresh spinach and cook for an additional 2-3 minutes until wilted.
Season the curry with salt and pepper to taste.
Serve the cod and spinach curry hot, with rice or bread if desired.