Re:Your favorite school lunch....
I attended grades 1 thru 8 in the 1940s and 1950s at a four-classroom school with a separate lunch house out back where the meals were prepared and served. I believe that all of the meals prepared there were based on USDA issued commodities; I am certain that the peanut butter, honey, butter, and cheese were government issue. At the end of each school year the oldest student in each family represented at that school was given a share of the left-over butter and cheese to take home.
There was a meal that consisted of a bowl of bean soup, a hunk of cornbread, and a slice of raw onion. There was also a hamburger based chili with a lot of beans, a lot of water, and very little tomato, not at all spicy - I don't remember what, if anything more than crackers, was served with it.
Another individual item that I remember was a sandwich, peanut butter mixed with honey on white bread. This was my favorite food in elementary school.
Except for the Johnny Marzetti, I really can't remember anything that was served in the high school cafeteria; however, I am confident that the meals served there were also based on USDA issued commodities.