Cooking High Liner frozen fish is straightforward, with baking and air frying serving as the most popular preparation methods to achieve a crispy exterior and tender flake. To bake, preheat your conventional oven to roughly 400 degrees Fahrenheit, place the frozen, unthawed fillets on a lightly greased baking sheet or wire rack, and bake for approximately 18 to 22 minutes until heated through and golden brown. Alternatively, air frying at 380 degrees Fahrenheit for about 10 to 14 minutes—flipping halfway through—delivers an exceptional crunch without needing extra cooking oils. Always ensure the internal product temperature reaches safe food-safety standards before serving.