I had the 'frutti di mare spaghetti'. A friendly man on another table had the fried seafood - My spaghetti was so good, I wanted to keep eating, so I also ordered the fried seafood he had. Not a cheap meal, but no regrets!
The best 'Sfogliatelle Frolla' (pastry bun with semolina filling) I had in my Naples holiday was on this charming small island of Procida. Also, their Cappuccino was pretty special too. Try both!