We make this a few times a year. After seeing KJR's post, it reminded me that we hadn't made one in some time. My wife makes this, I didn't do anything other than cut, I mean slice, the cheese
It's not the same recipe KJR uses but I imagine they're pretty darn close. We put pepperoni, sausage and bacon on ours. We cook the pep a little to render grease from it and we also precook the sausage for the same reason. When we don't, we end up with a very greasy pie. The bacon is also precooked.
Here's our version.