Preheat oven to 375˚F.
Mix sour cream with the salt, pepper, garlic powder, and green onions.
Combine the sour cream mixture with the chicken, potatoes, and half of the cheddar cheese.
Spread the mixture into a 9x13 casserole dish. Sprinkle remaining cheese and crumbled bacon over the top.
Bake for 20 minutes or until the casserole heated through and the edges start to bubble.
Garnish with extra green onions and serve warm. Enjoy!
