Grilled Swordfish Steaks Prep time: five minutesCooking time: about five minutesTotal time: about 10 minutes By Mike Stines, Ph.B. Swordfish, along with tuna, salmon, and Mahi Mahi, are ideal for the grill. The high oil content will keep the steaks moist during cooking. Have your fishmonger cut the steaks about 1/2-inch thick and then remove the bloodline from the center …