Anecdotally from what I've read on reddit AMAs from restaurant kitchen workers, most fast casual places cook only a few items from scratch, a majority at a place like Chili's or Applebees is prepared from a pre made portion supplied by Sysco. One pretty much has to have a source in the kitchen to know if someone is cooking a dish from scratch for you or if you are paying to essentially have someone else heat up your food like going out for a Blue Apron meal. Even somewhat fancier restaurants serve a lot of Sysco dishes. http://www.tampabay.com/projects/2016/food/farm-to-fable/res...