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Slow Cooker Cheesy Kielbasa Hashbrown Casserole

A warm, cheesy casserole loaded with smoky kielbasa, tender hash browns, and a creamy sauce—perfect for an easy comfort meal made effortlessly in your slow cooker.
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Prep Time 15 minutes
Cook Time 3 hours
Total Time 3 hours 15 minutes
Servings: 6 servings
Course: Breakfast, Brunch, Main Course
Cuisine: American
Calories: 480
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 32 oz hash browns defrosted, shredded preferred
  • 18 oz kielbasa diced, pre-cooked
  • 1 small onion diced
  • 1/2 cup butter melted
  • 2 1/2 cups shredded cheese Monterey Jack and Cheddar blend
  • 10.5 oz cream of chicken soup 1 can
  • 1 cup whole milk
  • 1/2 cup heavy cream
  • 1 tsp black pepper
  • 1/2 tsp onion powder

Equipment

  • Slow Cooker
  • Mixing Bowl
  • Measuring Cups and Spoons

Method
 

  1. Step 1: Grease the inside of your slow cooker with butter or non-stick spray to prevent sticking and ensure easy serving.
  2. Step 2: In the slow cooker, combine the defrosted hash browns, diced onion, diced kielbasa, black pepper, onion powder, and 2 cups of shredded cheese. Stir gently to mix evenly.
  3. Step 3: In a separate bowl, whisk together the cream of chicken soup, melted butter, whole milk, and heavy cream until smooth and well combined.
  4. Step 4: Pour the creamy mixture evenly over the hash brown and kielbasa mixture in the slow cooker. Sprinkle the remaining 1/2 cup of shredded cheese on top.
  5. Step 5: Cover and cook on high for 3 hours, allowing the cheese to melt and flavors to meld while the hash browns absorb the creamy sauce.
  6. Step 6: Once cooked, stir the casserole gently to combine the top layer with the rest. Serve hot, optionally with a fresh green salad or steamed veggies.

Notes

Make ahead by assembling the casserole in the slow cooker insert and refrigerating overnight. Add cheese topping just before cooking. Leftovers store well in the fridge for up to 3 days and freeze up to 2 months. Reheat gently in oven or microwave to maintain creaminess.