Transfer the halibut to a griddle or large frying pan over medium-to-medium high heat and cook for4 to 5 minutes per side or until well browned on both sides and cooked throughout.
Cover and keep the fish separate from the tortillas and toppings in the refrigerator for up to 3 days. This will freeze covered for up to 3 months. Thaw in the refrigerator for 1 day before reheating.