I went to a fairly well off public high school for my area and our food was horrific. I'd be curious to hear from anyone who went to a public high school in the US in the last 15 years where the food wasn't horrible, nutrition wise or taste wise.

It does not always play out like that. For example here is a scene from Supersize Me talking about a school for remedial trouble making kids serving nutritional full bodied meals:

[1]:https://youtu.be/tyOQTzl2DcU?t=3316

That movie is 20 years old at this point. There have been a lot more efforts to improve things across the country but its been hit and miss. Naturally the blue states tend to care more about this stuff but even they are not having uniform results.

Vouchers when?