Step 1

Spray a slow cooker with cooking spray.

Step 2

In a large bowl combine chicken soup, sour cream, hash browns, ham, cheese, onions, and black pepper. Stir to combine.

Step 3

Pour into slow cooker and cook for 2 hours and 30 minutes.

Step 4

In a small bowl, mix together corn flake cereal and butter. Toss to combine and pour over casserole, in slow cooker.

Step 5

Cover and cook an additional 30 minutes.