This little 'simple' recipe got me!! LOL!! I baked the first batch, obviously not enough cheese as all I got was a pan of 4 big crumbs! Added more butter, that was a little better, still not right!! LOL! Added more cheese, this time they came out sort of like they should?? and they folded nicely, then started to flatten out!! Not much like a roof tile, more like a roof shingle!! I think I had too many crumbs from the bread I used, I don't buy sandwich bread, so used what I had, first mistake!! The rest is a mystery, but I ended up with some 'tiles' if I can call them that, and a whole lot of very tasty crumbs to be used later for a topping on the next casserole I will prepare! So all is not lost, and I thank Vanessa7 for giving me a good laugh!! LOL When another chef decides to prepare this recipe, I would love to hear about and see their results!!