ham casserole with biscuits

Slow Cooker Hash Brown Casserole


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Slow Cooker Hash Brown Casserole is a perfect celebratory morning breakfast! You prep everything the night before, pop it in the slow cooker overnight, and wake up to delicious hash brown goodness in the morning!

Slow Cooker Hash Brown Casserole Ingredients

This recipe is pretty simple and I love that I usually have most of the ingredients in my fridge already. Usually all I have to do is pick up some kielbasa sausage from the store!

  • can cream of mushroom soup
  • sour cream
  • pepper
  • bag of frozen hash browns
  • kielbasa sausage
  • white onion, diced
  • red bell pepper, diced (optional)
  • cheddar cheese, shredded

How to Make Slow Cooker Hashbrown Casserole

Making this slow cooker hash brown casserole is super simple and only requires about 10 minutes of prep time. This is a great breakfast if you want some thing nice but won’t have time to prepare it in the morning. I like to make this in the evening and let it cook all night so that when I wake up in the morning, I have breakfast all ready to go.

OK, let me walk you through the steps of how to make this.

First, you’ll start by combining the cream of mushroom soup, sour cream, and pepper in a medium-sized bowl. 

Next, prepare your slow cooker. You can do this by spraying your slow cooker with nonstick spray, or you can use a slow cooker liner as well. Just whatever you prefer and whatever is easiest for you. Find all of my favorite slow cooker equipment here!

After your slow cooker is prepared, add in the frozen hashbrowns, sausage, onions, peppers, cheese, and the cream of mushroom soup mixture. Give that a good stir and cook on low for seven hours. 

After seven hours, scoop the casserole into balls or plates, and top with more cheese, if you like, and enjoy!

Breakfast Casseroles

Are you team savory or sweet breakfast? I honestly can’t choose!

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Slow Cooker Hash Brown Casserole

4 from 10 votes
Recipe by Julia Pacheco Course: Breakfast, BrunchCuisine: AmericanDifficulty: Easy


Prep time


Cooking time




  • 10 oz 10 can cream of mushroom soup

  • 1/2 cup 1/2 sour cream

  • 1/2 tsp 1/2 pepper

  • 30 oz 30 bag frozen hash browns

  • 14 oz 14 kielbasa sausage

  • 1 1 white onion, diced

  • 1 1 red bell pepper, diced (optional)

  • 2 cups 2 cheddar cheese, shredded


  • To a medium-sized bowl add in the cream of mushroom, sour cream, and pepper whisk to combine the ingredients.
  • Spray a large slow cooker with non-stick spray. Add in the hash browns, sausage, onion, peppers, cheese, and the cream of mushroom mixture. Stir until incorporated. Cook on low for 7 hours. Enjoy!

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