01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Pierce each potato several times with a fork. Place directly on the oven rack and bake 40 to 45 minutes, or until skins are crisp and potatoes are fork-tender.
03 - Cook bacon strips in a skillet over medium heat until crisp. 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 most of the flesh, leaving about 1/4 inch of potato attached to the skin. Reserve scooped potato 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 - Bake potato skins 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 and bake for 3 to 4 minutes until cheese melts and becomes bubbly.
08 - Remove from oven. Top with sliced green onions and a dollop of sour cream if desired. Serve immediately.