Cut baked potatoes into 1-inch cubes.
Grease a 13 x 9 baking dish.
Place half the potatoes in a greased baking dish.
Sprinkle with half the salt, pepper, and bacon. Top with half the sour cream.
Then top with half of the mozzarella and cheddar cheeses. Repeat the layers - salt, pepper, bacon, sour cream and cheese.
Bake uncovered at 350° for 20-25 minutes or until cheeses are melted.
Sprinkle with the sliced green onion.
