For a Personal Pie maker (Breville etc), your best bet is pie dough. Puff pastry may work as well. If you do a search on Breville personal pies, you will find many ways to use it, including quiche, desserts, etc. Won ton wrappers would probably burn. Fillo requires many layers and brushing with butter. Wolfgang Puck did demos on one of the shopping channels. He made psychedelic cake batter, bulls eye cake batter, and on and on. You can get as creative as you like. It pretty much works like a Panini press. Pizza dough might be interesting. Have fun with it.