In a bowl, toss the potatoes with olive oil, salt, pepper, garlic powder, onion powder, and dried oregano until evenly coated. Arrange them in a single layer in a baking dish.
Place the baking dish in the oven and roast for 20-30 minutes until the potatoes are fork tender. Turn them halfway through for even browning.
Make a small slit on the top of each potato and add a dollop of sour cream followed by a sprinkle of chopped chives. Sprinkle on bacon bits if using.