Filipino Morcon is a party dish, is made from rolled beef and cooked in either red or white sauce.
Some Filipino morcon recipes use tomato sauce, while others use a creamy white sauce.
You need a cut of beef that is lean and that which you can slice thinly, fill and roll without tearing. Though your best bet is a flank steak, it is quite an expensive cut. Other options are top round or bottom round.
As for filling, boiled egg is standard, then the strips of chorizo de bilbao, ham and pickles are arranged to give a bit of each per slice of the rolled beef.