Preheat oven to 350°.
Spray a 9 x 13" baking dish with cooking spray.
Bake the potatoes for 45 minutes, stirring every 10-15 minutes, until almost cooked through and starting to become crispy browned on the outside.
Mix together soup (thinned with a small amount of milk), seasonings, 1 cup of the cheese & hot sauce. Add the cubed chicken and stir to coat.
Once potatoes are cooked, add chicken mixture and cook another 15 minutes.
Top with cheese, bacon & green onions and return to oven till cheese is bubbly hot.
Serve with sour cream if desired.