1. 1. Bake potatoes in oven until done; let cool. Peel and cut potatoes into bite size pieces.
2. 2. In a large pot on medium heat, melt butter. Add flour and stir until blended.
3. 3. Increase heat to medium-high, slowly adding milk until mixture is almost to a boil.
4. 4. Add potatoes, green onions and bacon.
5. 5. Stir in cheese and sour cream.
6. 6. Salt and pepper to taste.
7. 7. Heat until cheese is melted; serve.