So yes, a thread about complementary meal service. This includes free school lunches, complementary breakfasts at hotels, and other examples I may not have named. What's your overall impression of them? What was your best experience? Your worst experience? Feel free to discuss other related things about these meals.
As for my experience with hospital food, I remember only having one, during one of my eye operations as a child. Squid fried in its own ink. Needless to say, my parents opted for take-out.
With airline food, I can only remember getting served a light meal of crackers and sweets on a connecting flight to Hong Kong. The meal on the longer trans-Pacific leg to Alaska was completely forgettable. All I could remember was that it didn't have rice.
Unfree school lunches - it depends. Elementary school was occasionally good, occasionally not good, and I varied between buying lunch and packing. Middle school was all-around pretty bad, so I almost always packed. High school was fairly decent, so I quite rarely packed. That there was always a sandwich option which was reliably good helped quite a bit. The spaghetti days were the best.
Free hotel breakfasts I usually find fairly good. Cereal, toast, sometimes more filling options like potatoes or ham... there's almost always something decent, whether you've just getting up or coming back from working the night.
I've actually had fairly good, though limited, experiences with airline food. I've flown both United and Air Berlin transatlantic, and actually liked the food on both. Even airline German potato salad is better than regular American potato salad! I remember one leg of the United flight had pretty good pasta; the other I don't remember the details but it had some nice camembert as a side.
Hospital food I have less experience with. I've eaten at hospital cafeterias a couple times, and while the food was nothing to call home about, I never had anything awful, either. And it was fairly inexpensive. Squid fried in its own ink sounds intriguing. I'd rather try it at a Valencian restaurant than a hospital, but if I were feeling adventurous I might try it at a hospital, too. Of course, if I were the patient I might not be feeling super-adventurous.
Of those airlines, I try to avoid United because of their propensity to leave me stranded (though the transatlantic flights were fine), but was happy with Air Berlin. They even gave out free chocolate upon arrival in Berlin.