Step 1

Preheat the oven to 350 degrees F.

Step 2

Grease a 9x13-inch baking dish

Step 3

In a large bowl, stir the hash browns, the ham steak, the cheddar cheese, the onion, the cream of chicken soup, the sour cream, the butter, the salt, and the pepper.

Step 4

Transfer the mixture to the prepared baking dish and cover it with aluminum foil.

Step 5

Bake the casserole until it is bubbly and the cheese has melted, about 45 minutes-1 hour.

Step 6

Remove the foil and continue to bake until brown, about 15 more minutes.

Step 7

Transfer from the oven, top with the scallions, and serve.