Add an Asian twist to your fish curry by incorporating soy sauce. In a food processor, blend together onions, garlic, ginger, and a mix of spices like turmeric, cumin, and coriander. Heat some oil in a pot, add the spice paste, and cook until fragrant. Stir in soy sauce, coconut milk, and fish fillets. Simmer until the fish is cooked and the flavors have melded together. Serve the curry over steamed rice or with naan bread.