you can just french toast anything you have laying around in your fridge or kitchen. they can't stop you.

https://www.youtube.com/watch?v=hB42iztkzVQ

i've done the french toast pizza and it wasn't bad. not sure if it was worth the effort. maybe there's an ideal type of pizza or combo of toppings that makes this spectacular. either way it's worth trying once just to say you did.