Preheat the oven to 400F.
Cover a baking sheet with foil. Clean potatoes and prick with fork.
Rub potatoes in olive oil and kosher salt.
Bake for 1 hour.
Let potatoes cool (5-10 minutes). Reduce oven temperature to 350F.
Slice potatoes longways to create two skinny boats.
Carefully scoop out potato into a bowl. Try to get as close to the skin as possible without tearing it.
Add the sour cream, butter, and seasoned salt to the bowl. Mash everything together thoroughly. *SEE NOTE
Chop the green onions. Add the onions, cheese, and crushed bacon to the bowl and mix well.
Season to taste with salt and pepper. Stir continually until it looks almost like mashed potatoes.
Spoon the mixture evenly into the potato skin shells.
Cover the top with additional cheese (if desired).
Bake for 20 minutes.
Potatoes can be refrigerated and reheated. This works well for several days after making them. I do not recommend freezing these.
*If you are preparing this for picky eaters or a kids' slumber party, you can dole out potatoes into individual bowls and allow the kids to add their own toppings and mash it up. Encourage their creativity, individual expression, and definitely encourage taste testing!