Using a separate bowl for each, place flour in one, beaten egg in another and combined breadcrumbs/pecorino cheese in the third.
One by one, coat lightly each flathead fish finger with the flour, then dip into the egg, then finish coating firmly with breadcrumb mixture.
Using a non-stick frying pan, heat oil over medium heat. Add fish fingers to pan and cook around 2 minutes on each side, or until golden brown and crunchy. The fish fingers will need to be turned with a spatula.
Once fish fingers are cooked, place on absorbent paper towel.
These are really good with peas and mashed potatoes.