Prepare your steaming device with water. Remove skin from fish. Place a vegetable like diakon or lettuce on the plate so the fish does not stick. Then, put the fish on top of the vegetables on the plate. Garnish fish with julienne sliced fresh ginger. Feel free to add green leafy vegetables around the plate, like bok choy, and cover. Steam fish and vegetables for 4 to up to 8-10 minutes, depending on the thickness of the fish fillets. The fish is cooked when the flesh flakes easily with a fork and is no longer translucent.