John Dory Fillet are a firm and moist flesh fillet with a succulent and sweet flavour. The fillets are delicate with a white flesh and greyish coloured rubbery skin which can sometimes make filleting John Dory a little difficult. So how to cook John Dory Fillets? To cook John Dory fish simply pan fry for the best results in oil or butter. You catch these fish on long lines in deep cold waters up and down the New South Wales coastline. The colder the water the better when it comes to catching john dory. John Dory Fish is clearly a premium fish in the ocean- seafood delivery from Manettas Seafood Market will see you with the freshest fish available.