1Prick potatoes with a fork and cook in the microwave, 3 or 4 at a time, and scoop out the flesh (while the others are cooking).
2In a large saucepan over medium heat, melt butter. Stir in flour and cook about a minute. Whisk in milk, a little at a time, stirring constantly until thickened. Stir in potatoes, salt, pepper, 1/3 cup bacon bits, 2 tablespoons green onions and most of the cheese. Cook until thoroughly heated. Stir in sour cream and heat through. Serve topped with remaining bacon, onions and cheese.
Aluminum foil can be used to keep food moist, cook it evenly, and make clean-up easier.