First, shred and chop the chicken. Allow the frozen hash browns to thaw. Be sure to drain the excess water. I think the recipe works out better the more the chicken is spread out through the casserole dish. Preheat the oven to 350℉.
Next, combine the cream of chicken, sour cream and the seasonings. Next, mix the thawed hash browns with the shredded cheese and the creamy mix you just put together.
The, in a 16x9 baking dish spread the mix out. Place in a preheated oven for 30 minutes.
While the casserole is baking make the buttery topping. Take melted butter and toss it with corn flakes. That's it.
Now, at 30 minutes remove the chicken hashbrown casserole from the oven. Then top it off with corn flake topping. Now, bake an additional 20-25 minutes or until the topping has turned golden and crispy.
Lastly, allow the mix to cool a bit before serving.