01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper or lightly grease it.
02 - Toss potato slices with olive oil, salt, and pepper. Arrange in a single layer on the prepared baking sheet.
03 - Bake the potatoes for 25–30 minutes, flipping once halfway, until golden and crispy.
04 - Transfer the baked potato slices to an oven-safe platter or leave them on the sheet. Top evenly with shredded cheddar cheese and crumbled bacon.
05 - Return to the oven for 5–7 minutes, until the cheese is melted and bubbly.
06 - Remove from oven. Dollop with sour cream, then sprinkle with green onions, tomatoes, jalapeños, and parsley as desired. Serve immediately while hot.