Some background: many years ago I went away for a weekend in Prague with a bunch of friends. After the bars closed we stopped at a kebab shop that sold lots of very exciting snacks. Picking something at random, I ended up with a sort of savory rolled up concotion of pasty, tomato and cheese. It was the best post-pub snack I think I've ever had. Recalling this the other day, I decided I was going to try and re-create it.
Recently I learned that this sort of thing is quite popular in parts of Northern Italy. I doubt they put olive eyes on it though...
Step 1: Make a thin rectangular pizza
Use some Italian passata for the tomato base, spread it out with a spatula or spoon.