A 'fish fry' is something of a misnomer as only the eel is a fish, and even that's questionable now that it's undead. The lobster is most definitely a crustacean, and a cabbage is a holy orb of sustenance, delivered by the majestic Brassica Prime. Therefore, not a fish.
We give a fish fry a pass, mainly because it's a Fellhollow delicacy, once favoured by Ravanna. It was invented after a sailor saw a lobster and eel fighting and threw a well-aimed cabbage. He fried the result and lo, fish fry was born.