Did this one a while ago, just found the pic (was lost on another PC!
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Cheese was heated on a hot griddle until the bottom browned nicely - the filling consisted of bacon, a little crumbled sausage, diced potatoes, onions, and of course, more cheese
When almost done, the one side was folded over the other, then removed from the heat and allowed to slightly cool - shortly the cheese "shell" hardened.
Result: crisp cheesy shell, moist potatoes complementing the smoky bacon and tang of the onion