If the behind the scenes for food programmes, is like the support office staff when someone has a buffet lunch in a meeting room, as soon as the filming is over, everyone present will be tucking in and wrapping up anything left to take home.
We used to love meetings with buffet lunches at work. As soon as the meeting ended, we descended on the trolley and cleared it of all the delectables fed to Directors at working lunches.
I belong to a local liaison commitee at our local power station and although our lunches after the meeting are modest affairs, as the last meeting attender goes down the stairs on their way home. People in adjacent offices 'casually' wander down to see what is on offer from the meeting lunch.