01 -
Place the shredded hash browns into a large mixing bowl.
02 -
Spread sour cream and condensed cream of mushroom soup over the hash browns. Sprinkle with salt and black pepper. Mix thoroughly until fully combined.
03 -
Fold in 2 cups of shredded cheddar cheese and mix well to evenly distribute.
04 -
Spread the combined mixture evenly into the base of a lightly greased 9x13 inch baking dish.
05 -
Bake in a preheated oven at 350°F (175°C) for 35 minutes.
06 -
Remove from oven, scatter the remaining 1 cup shredded cheddar cheese and evenly layer the sliced smoked sausage on top.
07 -
Return to the oven and bake for an additional 15 to 20 minutes, or until the casserole is thoroughly heated and the cheese has fully melted.