For a while we had a system at work whereby one of a group of five of us would cook each day, which was great - no traffic jams in the kitchen at lunch time, only have to think something up once a week and bring the ingredients. I once did two baking trays full of pizza. To save time,as it was at work, I had ready-made pizza bases, which you can buy rolled up. Only when I took them out of the oven did I notice that I'd forgotten to take the paper off one of the bases, and had distributed the tomatoes, cheese, salami etc, on to the paper.
I just scraped it all off whilst trying to pull the paper out like the trick with the table cloth, which, fortunately, worked. It didn't make much difference to the taste, which was a good thing, because there was nothing else to eat, of course!