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Delicious smoked sausage casserole with cheesy potatoes in a baking dish
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Smoked Sausage & Cheesy Potato Casserole

Creamy, cheesy, and packed with savory smoked sausage, this casserole is a hearty, crowd-pleasing dish that warms the whole house.
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Main
Cuisine: American
Keyword: Easy
Servings: 6 servings

Equipment

  • Skillet
  • Mixing Bowl
  • Baking Dish

Ingredients

Casserole Ingredients

  • 4 cups Frozen diced hash brown potatoes Thawed
  • 2 cups Smoked sausage Sliced into 1/2-inch rounds, lightly browned
  • 1.5 cups Shredded sharp cheddar cheese Divided (1 cup for mixing, 1/2 cup for topping)
  • 1 cup Sour cream Room temperature is fine
  • 1 can Cream of mushroom soup (10.5 oz)
  • 0.5 cup Whole milk
  • 0.5 cup Chopped yellow onion (about 1 small onion)
  • 2 tablespoons Unsalted butter Melted
  • 1 teaspoon Garlic powder
  • 1 teaspoon Salt
  • 0.25 teaspoon Black pepper
  • 0.5 teaspoon Paprika (optional, for color and mild heat)
  • 1 teaspoon Fresh parsley Chopped, for garnish

Instructions

  • Preheat oven to 375°F and lightly grease a 9x13-inch baking dish with cooking spray or a little butter.
  • In a skillet over medium heat, add the sliced smoked sausage and cook for about 5 minutes, stirring occasionally, until lightly browned. Remove from heat and set aside.
  • In a large mixing bowl, combine 1 cup sour cream, 1 can cream of mushroom soup, 1/2 cup whole milk, 2 tablespoons melted unsalted butter, 1 teaspoon garlic powder, 1/4 teaspoon black pepper, and 1/2 teaspoon paprika (if using). Stir until smooth and well blended.
  • Add 4 cups thawed frozen diced hash browns to the sauce; fold gently so the potatoes are coated.
  • Stir in the browned smoked sausage, 1/2 cup chopped yellow onion, and 1 cup shredded sharp cheddar cheese. Mix until evenly distributed.
  • Pour the mixture into the prepared baking dish and spread it out evenly.
  • Sprinkle the remaining 1/2 cup shredded sharp cheddar cheese over the top, spreading to cover.
  • Bake uncovered for 45 minutes, until the edges are bubbling and the top is golden.
  • For a crispier cheese crust, switch the oven to broil and broil for 2 to 3 minutes — watch closely to avoid burning.
  • Remove from the oven and let the casserole rest for 5 minutes. Sprinkle with 1 teaspoon chopped fresh parsley before serving.

Notes

Store leftovers in an airtight container for up to 3-4 days. This casserole freezes well; cool completely, portion into freezer-safe containers, and freeze for up to 2 months.