I give my cats saithe fish fillets (that is what translator told it to be), I cook them in microwave with water, this is mostly to avoid worms, but it also helps to make food more tasty to cats as they are crazy about it this way. When I serve I make fish small pieces, it is really easy because fish gets quite soft when boiled, There is around 50% of liquid and rest is fish.
When prepared that way it disappears in seconds.
They do eat food in any form actually, except if it has a tail, so whole fish is not suitable food for these two.
It is rare that I would give bigger chunks, but those disappear too, they just tend to lick that quite a bit before eating.
Translator gave me pig / beef mince when I typed one meat type which I give them, it has 40% of pig and 60% of cow, also has 23% of fat content, I'm not giving this too often as it does build up into body quite quickly, but for cat fat is important, also real proper meat is important as that is what cat eats, but this I just take from box size of two meatballs and give it to them as such, I did once make it to meatball, but they did not understand that it is possible to eat that ball, they just swabbed it with their paw until there was big mess.
I don't give wet cat food as most sold here are really bad quality, some are 70% of corn and meat like substances, which is not what cat should eat in my opinion.
When I'm away they eat dry food only, exception is of course if mouse makes a mistake and enters their room.
These cats are indoor only ferals, so as they are ferals they are perhaps not so picky, if it moves they taste it and if not moving they first sniff it, then most likely taste it by licking, never mind the fact that object might be alarm lock.
It is not yet a week that I have had them here, so this is mostly what I have planned, but they have been eating at warehouse for several months, so this information is with that kind of background.