Have you seen any information or evidence regarding Dining Facility Contractors removing food from facility?

in my experience, most, if not all, companies who run the d-facs watch the food like hawks. Once audits are done and food is wound upo missing, the culprits will be terminated. As far as portion limitation, yeah, that happens. Companies like Sudexo care a ton about plate costs. To limit the costs, they encourage their servers, some of which can barely understand English, to short portions and make 2 portions last four or more ways. I worked in dining facilities managed by Sudexo and by Marines and the difference is staggering.

Theft of govt property. Document it and notify NCIS.

Based on your profile location, i'm assuming you're on a Navy base.

That would be larceny of government property a crime.