Stick the pan in the oven and allow the butter to completely melt.
1/2 Stick Unsalted Butter
Remove the pan from the oven once the butter is melted and set on the stove top.
Dump all of the potatoes into the dish and use a large spoon to toss the potatoes in the melted butter.
3 Russet Potatoes
Put the parmesan cheese into a large ziploc. Add the buttery potatoes, seal the bag and toss to coat evenly.
1 Cup Parmesan Cheese
Dump all of the potatoes back into the baking dish and place in the hot oven.
Bake for 25-30 minutes, or until all potatoes are tender and the cheese is beginning to turn golden. Mine almost always take thirty minutes, however the last time I made them I must have made them extra small because it only took 20 minutes. I would just keep a close eye on them.
Remove from the oven and sprinkle with fresh parsley.
1/4 Cup Parsley
Serve immediately.
If you have any leftovers you can reheat them, but you'll want to do so in the oven to re-crisp the cheese. Trust me.