[Basket_of_Deplorables]

“Nowhere in all of Italy, the birthplace of Pizza, “

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That’s very debatable. It may have become popular there before America, but flat bread baked with toppings existed in Roman times.

And a casserole can’t stand by itself, without a container. That square pizza can, and is most definitely NOT a casserole.

Fact is, you’re just making stuff up.

[ocrp1982]

“And a casserole can’t stand by itself, without a container. That square pizza can”
Really? Show me a deep-sided pizza whose dough is deep enough to contain the mass quantity of ingredients that these casseroles contain that is placed into an oven as a stand-alone item.
I’m not making up a damned thing. I have lived in Italy and visited every region. From the Island of Sicily to the top of the boot.
Nowhere in all of Italy does there exist anything called a Pizza that remotely resembles a Detroit or Chicago Casserole. It does not exist.