01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - Pierce potatoes several times with a fork. Place directly on the oven rack and bake for 40 to 45 minutes, or until skins are crisp and potatoes are tender when pierced.
03 - While potatoes bake, cook bacon strips in a skillet over medium heat until crispy. Drain on paper towels and crumble once cooled.
04 - Remove potatoes from the oven and allow to cool slightly. Cut each potato in half lengthwise. Carefully scoop out most of the flesh, leaving approximately ¼ inch of potato attached to the skin. Reserve scooped flesh for another use.
05 - Brush both sides of the potato skins with olive oil. Season with salt and black pepper. Arrange skins skin-side down on the prepared baking sheet.
06 - Return skins to the oven and bake for 10 minutes, flipping halfway through, until edges are golden and crisp.
07 - Fill each potato skin with shredded cheddar and crumbled bacon. Return to oven for 3 to 4 minutes or until the cheese is melted and bubbly.
08 - Remove from oven. Top with sliced green onions and a dollop of sour cream if desired. Serve immediately.