I was one of those kids who refused to buy a school lunch for many years (and, fortunately, had a mother who as happy to pack a lunch). I can even remember one instance in elementary school where I'd decided to bite the bullet & eat the school lunch, only to call my Mom once I got to school to ask her to bring a packed lunch to me.
In 8th and 9th grades I actually ended up at a school where everyone went home for lunch--loved it!--or to the local snack bar. I'd go to the snack bar a couple times a month, but was more than happy to head home for a homemade lunch with my Mom.
Irony of all ironies, after years of homemade lunches I ended up at boarding school in England for my sophomore year in high school...talk about institutional meals! For 9 months I had to eat school lunches...and breakfasts and dinners, too! I must have some kind of mental block on the food side of it, because I remember only a few dishes that were served:
* Garlic chicken (the first meal I ate at school, and one that made regular appearances on the menu) - noteworthy only because it was a mysterious orange color
* French fries - I ate a lot of these
* Fried calamari - Never ate these, but memorable because people used to shoot them across the dining room like rubber bands
* Un-iced yellow cake served with a warm vanilla cream sauce (probably some Bird's Custard knock-off)
Now, we did have a student snack bar that sold these awesome grilled cheese sandwiches, which I ate regularly, and every weeknight after study hall the seniors would make a run into the closest town and buy a ton of kabobs, which they resold to students...those I loved!
I went to Northwestern some 20-odd years ago and in the dining hall (run by Marriott, I think) they served this French onion soup with deep-fried croutons in lieu of bread...it was awesome in greasy kind of way.