how long to grill moon fish
1 Rub the opah with oil and season with salt. 2  Grill over high heat until just cooked through, 1 1/2 minutes per side. 3  Slice each steak into 4 pieces. 4  Spoon the topping over the fish and serve.nstructions. 1  In a saucepan, melt the butter in 1 tablespoon of olive oil. 2  Cook over moderate heat until the butter browns slightly and smells nutty, 2 minutes. 3  Add the anchovy, crushed red pepper, pine nuts, capers, olives and lemon juice and cook for 1 minute.