SOLVED: This apparently is a baking dish. Thrift store find for my wife. But why is there a hole in the side? What is it?
(lemmy.dbzer0.com)
Oh, and it's LARGE. That's my range it's sitting on, and it covers about 2/3 of it.
Some people say handle. I think it’s to have an electronic device slotted in to do something inside while it’s in the oven. Not sure it was intended for baking food.