Did you ever get the weird lumps in the milk, that was the last time I ate cafeteria food and always brought my lunch after that.
Only once, and never ordered the milk again. (Maybe they were trying to drive us to the corporate sponsor, Coca Cola?) The cafeteria was a huge multipurpose room, and kids would buy the milk cartons to use as "hand grenades", throwing them high in the air across the room and learning important lessons about splash damage.
Similarly, had the hamburger once, didn't do that ever again. The burrito was... ok. The pizza was ghastly. (How can you ruin pizza??) The hot dog... I don't want to talk about it.
There was a McDonald's a few blocks away (original design, with the building between two giant yellow arches) and kids (including me) would break the prohibition against going off-campus during school hours to have lunch there. Not only was the food quality better, the prices were also. A regular hamburger made fresh with onion pickle ketchup and mustard was (in 1973) 20 cents, and the bone meal filler hamburger made hours earlier on a bun with nothing else at school was 25 cents.