Preheat oven to 400°F (200°C). Scrub potatoes clean, dry them, and rub with olive oil.

Place potatoes directly on oven rack and bake for 50–60 minutes until tender.

Remove potatoes from oven. Let cool slightly until safe to handle.

Cut each potato in half lengthwise and carefully scoop out the flesh, leaving a thin shell.

Place scooped potato flesh in a mixing bowl. Mash with sour cream, milk, butter, salt, and pepper until smooth.

Stir in half of the cheddar cheese, bacon, and green onions. Mix well.

Spoon the mixture back into the potato shells, dividing evenly.

Sprinkle tops with remaining cheddar cheese.

Return potatoes to oven and bake for 15–20 minutes until cheese is melted and tops are golden.

Garnish with extra green onions or bacon if desired. Serve warm.