BTW, that sacred rule about not washing cast iron ever? Wrong. I wash mine all the time.
Once a pan or pot is seasoned right, you can lightly wash it, just don’t soak it very long. A well-seasoned pan will not stick but act like a non-stick one, although you can still burn stuff which might stick.
I mean, do you really want nasty built up grease on your pans? I don’t.