01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - Pierce potatoes several times with a fork. Place them directly on the oven rack and bake for 40 to 45 minutes until skins are crisp and potatoes are tender when pierced with a fork.
03 - While potatoes bake, cook bacon over medium heat in a skillet until crispy. Drain on paper towels and crumble once cooled.
04 - Remove potatoes from oven and let cool slightly. Cut each potato in half lengthwise. Carefully scoop out the majority of the flesh, leaving approximately ¼ inch of potato attached to the skin. Reserve the scooped potato for another use.
05 - Brush both sides of the potato skins with olive oil and sprinkle with salt and black pepper. Arrange skins skin-side down on the prepared baking sheet.
06 - Return potato skins to the oven and bake for 10 minutes, flipping them halfway through until edges are golden and crispy.
07 - Fill each potato skin with shredded cheddar and crumbled bacon. Bake for an additional 3 to 4 minutes 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.