I always associate Relyeno na Bangus with Semana Santa or Holy Week for we observe abstinence for pork and other meat dishes especially during Good Friday. That's where relyenong bangus comes in - not "meaty" but still as delicious as it can be. Before, it was my duty to be the one who takes care of the fishbones ( sikag / tinik ) of the flaked bangus before it is seasoned and made into one delicious relleno . Here's a basic recipe for Bangus Relyeno