Having spent a large portion of time answering phones in the pizza business, I can assure you that a great many people in Saskatchewan will order an all-dressed pizza even though we had no such thing on the menu.

Yeah, mostly came as a surprise to me because I've spent most of my time in Saskatchewan and Ontario near the Quebec border. I somehow managed to spend my entire life bouncing around Canada and never spend much time anywhere where "all dressed pizza" didn't exist, even though it's apparently a highly-specific term.

The Works is pretty common in the US, too. Pizza and sandwich toppings

in MB, never heard of all-dressed pizza in my life. We have the chips and the works pizza

And bagels.

It was an Everything pizza at the place I worked at as a kid. They're disgusting.