Loaded Twice Baked Potato Casserole (Yes, with Bacon!)

4 large baking potatoes (3 pounds total)

1/2 pound bacon

1 cup sour cream (can use light)

1 Tbsp. chicken bouillon

1/2 cup 1% milk

1 tsp. fresh ground black pepper

1/4 tsp. white pepper

1 bunch green onions minced

2 – 3 cups shredded sharp cheddar cheese (divided)

Additional bacon and chives to garnish if desired