Background
You can get quite a bit of material under the Freedom of Information Act (FOIA) even copies of cafeteria menus and complaints sent in regarding the food.
Although I still have quite a few open FOIA requests regarding this, the below have come in thus far.
Central Intelligence Agency (CIA)
CIA Cafeteria Complaints, Calendar Year 2013 [29 Pages, 2.7MB]
Defense Intelligence Agency (DIA)
DIA Cafeteria Complaints, Calendar Year 2013 [33 Pages, 11MB]
Department of Agriculture (USDA)
USDA Cafeteria Complaints, Calendar Years 2014-2015 [4 Pages, 0.6MB] – USDA claims only 1 complain was filed, but was settled, so there was no official report.
Department of Commerce (DOC)
DOC Cafeteria Complaints, Calendar Years 2014-2015 [4 Pages, 1.7MB] – Pretty long and detailed complaint because he felt he overpaid by… 47 cents! (Wonder how much taxpayers paid to pay this worker, to write this letter?)
Department of Defense (DOD)
DOD / Pentagon Cafeteria Complaints, Calendar Years 2014-2015 [37 Pages, 1.7MB]
Department of Energy (DOE)
DOE Cafeteria Complaints, Calendar Years 2014-2015 [149 Pages, 14.1MB]
Department of Health and Human Services (HHS)
HHS Cafeteria Complaints, Calendar Years 2014-2015 [11 Pages, 1.6MB ]
Department of Transportation (DOT)
DOT Cafeteria Complaints, Calendar Years 2014-2015 [16 Pages, 2.8MB ]
National Reconnaissance Office (NRO)
NRO Cafeteria Complaints, Calendar Year 2013 [30 Pages, 0.6MB]
National Security Agency (NSA)
NSA Cafeteria Complaints, Calendar Year 2013 [18 Pages, 9.3MB]
Nuclear Regulatory Commission (NRC)
NRO Cafeteria Complaints, Calendar Years 2014-2015 [8 Pages, 0.6MB]