I recently found a website with USDA-created recipes for school cafeterias (link)
Sadly (or fortunately, depending who you ask) these recipes are relatively "real", meaning they have shortening, oils, sugar, what have you. So in reality, there are many ranges of cafeteria food across the nation ranging from "healthy" (read: gross) policed by state "fat fascists" to delicious.
I could've written a bit more on the subject, but I'm tired. Thus the "Part One" was added for further posts and research.
Good night, everybody.