Will you at any point be making your fillet-o-fish burger suitable for pescetarians? 21 April 2021 05:34 Unfortunately there are no plans to change the cooking method for the Filet-o-Fish® patty. Related articles Do you cook different meat and fish products in the same oil? Can you explain the oil filtration process? Are McDonald's fries prepared in lard prior to being fried? Where are your hash browns made from and what oil are they fried in? How do you make a Big Mac®?