Spinach, feta, capsicum, cheddar, sweet chilli sauce... I can't remember why I had all these things laying around, but they did come in handy.
I bought one of those nasty par-baked turkish bread rolls from my local Coles, then piled this stuff on top and baked it at 180C for about 20 minutes. Soooooo yummy. I could go another right now, actually.