Cut precooked potato in half. Carefully scoop out potato and transfer to medium bowl; reserve potato skins for later.
In a medium bowl, combine the potato insides, green onions, pimentos, butter, salt and pepper, and heavy cream until creamy and well mixed. Scoop potato mixture and place back in potato skins.
Place potatoes on Reversible Rack and place rack in NuWave Brio Basket. Top each potato half with mozzarella.
