It is important to grease the perforated steam oven pan with cooking spray, as the fish may stick during cooking.
Season the fish fillets and place them onto the greased perforated steam oven pan. Place the solid steam oven pan on rack position 1 and the perforated pan on rack position 2. Turn the convection steam oven on by selecting the Steam Mode set to 85°C. Set the timer for 15 minutes. After 15 minutes, check the fish to make sure it is done to your taste. Continue cooking if needed. When the fish is done, remove the perforated pan from the oven. Using a spatula, gently remove the fish fillets from the perforated pan and serve.