Okay. I worked at a domino's a few years ago, wasn't sure how similar pizza hut was when it came to disposing expired productI used to manage a Pizza Hut, the dough is all shipped in frozen as pucks and sheets. They let it defrost overnight in pans, then (for some of the dough) place it in a proofing oven. Its good for 48 hours after that, though 36 is more accurate.
Anything that isn't sold after 48 hours is usually baked off, bagged up, frozen, and donated to a local shelter as a tax write off for the store.
at least, that was the business plan 30 years ago.