Place potatoes on a baking sheet. Bake in the oven until the potatoes are soft when poked with a fork, about 60-75 minutes. Remove from the oven and cool to room temperature.
Increase oven temperature to 400F.
Slice the potatoes in half. Scoop out a bunch of the potato flesh leaving a hollowed out part in each potato half.
Bake the potato halves for 15 minutes. Remove from the oven.
Remove the potato halves from the oven and sprinkle salt on all the potato halves. Top with grated cheese and crumbled bacon.
Place the potato skins back in the oven and bake until the cheese is melted and bubbly, about 15 minutes.
Serve hot, with a dollop of sour cream and some sliced green onions.