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A serving spoon lifting a portion of the finished breakfast casserole from the black slow cooker on a white marble cooktop, showing the gooey cheese, fluffy eggs, and crispy hash browns

Breakfast Casserole Recipe

This slow cooker breakfast casserole is an easy, hearty dish packed with eggs, sausage, cheese, and hash browns—perfect for a no-fuss morning or feeding a crowd effortlessly!
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Prep Time 15 minutes
Cook Time 6 hours 5 minutes
Total Time 6 hours 20 minutes
Course Breakfast
Cuisine American
Servings 8
Calories 641 kcal

Equipment

  • Slow cooker
  • Large skillet
  • Whisk
  • Mixing bowl
  • Cooking spray

Ingredients
  

  • cooking spray
  • 1 26 ounce package frozen hash brown potatoes, thawed
  • 12 eggs beaten
  • 1 cup milk
  • 1 tablespoon ground mustard
  • salt and ground black pepper to taste
  • 1 16 ounce package maple-flavored sausage
  • 1 16 ounce package shredded Cheddar cheese

Instructions
 

  • Spray the slow cooker with cooking spray.
    A black slow cooker on a white marble cooktop, lightly coated with cooking spray. The glossy interior is prepped to prevent sticking.
  • Spread thawed hash browns evenly in the slow cooker.
    A black slow cooker on a white marble cooktop, filled with an even layer of thawed hash brown potatoes. The shredded potatoes create a textured, golden base
  • In a bowl, whisk together eggs, milk, mustard, salt, and pepper.
    A glass mixing bowl on a white marble cooktop, with beaten eggs, milk, ground mustard, salt, and black pepper being whisked together into a smooth, golden mixture
  • In a skillet, cook sausage until browned, then drain the grease.
    A black skillet on a white marble cooktop, with crumbled maple-flavored sausage sizzling and browning. A wooden spatula stirs the sausage as it cooks
  • Layer cooked sausage over hash browns, followed by shredded cheese.
    A black slow cooker on a white marble cooktop, with shredded cheddar cheese generously sprinkled over the sausage, creating a bright orange layer of cheesy goodness
  • Pour the egg mixture over the layers in the slow cooker.
    A black slow cooker on a white marble cooktop, as the whisked egg mixture is poured over the layers of hash browns, sausage, and cheese, filling the gaps and preparing for slow cooking.
  • Cover and cook on Low for 6 to 8 hours.
    A serving spoon lifting a portion of the finished breakfast casserole from the black slow cooker on a white marble cooktop, showing the gooey cheese, fluffy eggs, and crispy hash browns
  • Serve warm and enjoy!