Holy cow, I wrote a book!
A tour of Redmond campus cafeterias back in the old days took much less time than it would require nowadays. Back then, the cafeterias were tiny affairs, the size of maybe three offices not counting the prep area, with a seating capacity of maybe a dozen tables. Each cafeteria had a theme, so going to lunch back in the day was not "Let's go to the nearby mega-cafeteria and decide what we'll have." It was "Let's decide what we'll have, and then go to the mini-cafeteria that is serving it."
Here are the cafeterias on campus back in The Before Time, along with their specialties:
All cafeterias had a salad bar, and the cafeterias in buildings 8 through 10 were extra large: In addition to the featured theme, they also had a grill and made sandwiches to order. (It was like three cafeterias in one!)
I myself have never even seen a Blibbet Burger, much less eaten one. Larry Osterman has some Blibbet memories, and Adam Barr has more cafeteria memories.