Evidently, the US Navy runs a dining facility in the White House. According to reports, it is reserved for "White House officials, Cabinet members and other dignitaries".
Somehow, the press seems to think that Scott Pruitt, the head of the EPA, uses that facility a lot, and is using FOIA requests to find out how many times he uses it. Somehow, the idea that a Cabinet member uses a dining facility reserved for Cabinet members is supposed to be some sort of scandal. But, it's the First Amendment and if they want to waste their time chasing a scandal where a Cabinet member eats in a facility reserved for Cabinet members, good for them.
However, I don't blame Pruitt one bit. The US Navy puts on a pretty good feed bag, and when I get the chance, I would eat in a Navy mess. The Standard Navy Breakfast is a thing of glory and will keep a fellow going all day.