Seasoned Roasted Potatoes - Easy and Frugal. Microwave them for 7-8 minutes on high, turning once or twice. Cut each potato in half lengthwise. Score the potatoes to create cubes, but don't cut all the way through. Stop before you slice the peel. Brush with butter and season however you like. I sprinkled with salt, pepper, and Greek seasoning. Pop in the oven for about 10 minutes at 375.