Preheat oven to 400°F.

In a bowl, combine olive oil, garlic powder, and seasoning salt.

Cut potatoes in half.

Coat potatoes with the oil mixture.

Place potatoes on a greased baking sheet cut-side down.

Bake for about 25 minutes, or until potatoes are tender.

Let the potatoes cool completely.

In a medium bowl, mix sour cream, green onions, crumbled bacon, and black pepper.

Slice a small piece off the bottom of each potato half for stability.

Scoop out some of the center pulp from each potato half, reserving the pulp.

Fill each potato half with about 1 tablespoon of the sour cream mixture.

Sprinkle chopped green onion on top of the sour cream filling.

Serve immediately or chill until needed.