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Slow Cooker Sausage and Potato Casserole

Slow cooker sausage and potato casserole with tender sliced potatoes, sausage rounds, and a cheesy egg custard that sets low and slow. Layer frozen hash browns and kielbasa in a crockpot, bake in an egg mixture, then finish with golden, melted cheddar on top.
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Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Servings: 8 servings
Course: Breakfast, Dinner
Cuisine: American
Calories: 600
Ingredients Equipment Method Notes

Ingredients
  

Slow cooker sausage and potato casserole
  • 1 lb smoked sausage or kielbasa sliced
  • 30 oz frozen hash browns thawed
  • 8 large eggs
  • 1 cup whole milk
  • 1.5 cup sharp cheddar divided
  • 0.5 cup sharp cheddar divided
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1 salt to taste
  • 1 black pepper to taste
  • 1 fresh chives for garnish

Equipment

  • 1 slow cooker

Method
 

Prep and layer
  1. Grease the slow cooker insert well so the casserole releases cleanly after cooking.
  2. Layer the thawed hash browns in the bottom of the slow cooker, then scatter the sliced sausage rounds on top.
Make the cheesy egg custard
  1. Whisk the eggs, milk, garlic powder, onion powder, salt, and black pepper until evenly combined.
  2. Stir in 1.5 cups of the shredded cheddar so the custard turns thick and creamy, then pour it over the sausage and potato layers.
  3. Top with the remaining cheddar for a melted, golden finish.
Cook
  1. Cook on LOW for 6 hours, or on HIGH for 3–4 hours, until the eggs are fully set and the top looks golden and cheesy.
Serve
  1. Garnish with fresh chives and serve directly from the crockpot.

Notes

For the cleanest slice, let the casserole rest in the turned-off slow cooker for 10 minutes before serving. Store leftovers covered in the refrigerator for up to 4 days; reheat portions in the microwave until hot throughout. Freezing is not recommended because the potatoes and custard can turn watery when thawed. For a lighter option, use reduced-fat cheddar and 2% milk (texture stays close, flavor is slightly less rich).