A balanced diet can be said when it contains the right amount of calories each. So, although not very popular with children, even the fish must often appear on our tables. How to overcome the obstacle of their liking? Simple: presentiamoglielo in the most delicious that we can invent and you're done! Among the main courses of fish we can prepare the offering delicious croquettes with sardines, fried balls that hide within them a heart of delicious fish.