Crockpot breakfast casserole is an easy slow cooker recipe made with hash browns, sausage, eggs, and cheese. Perfect for holidays, brunch, or meal prep, this hearty dish cooks overnight or while you get ready for the day. Simple to prepare and packed with flavor, it’s a family favorite for busy mornings. Ideal for feeding a crowd with minimal effort and easy cleanup.

Warm, hearty, and full of flavor, this Crockpot Breakfast Casserole is the perfect make-ahead dish for busy mornings, brunch gatherings, or holidays. Packed with sausage, hash browns, cheese, and eggs, it’s a comforting all-in-one meal that cooks effortlessly in your slow cooker while you sleep or go about your day.

Ingredients

30 oz frozen shredded hash browns (such as Ore-Ida)
1 lb breakfast sausage, browned and drained (such as Jimmy Dean)
8 oz shredded cheddar cheese
8 oz shredded mozzarella cheese
3 green onions, chopped
12 large eggs
½ cup milk (any type)
½ teaspoon salt
¼ teaspoon black pepper

Instructions

Prepare the Slow Cooker
Spray a 6-quart slow cooker with nonstick cooking spray to prevent sticking.
Assemble the Layers
Add half the hash browns to the bottom of the crockpot. Layer on half of the cooked sausage, half the cheddar and mozzarella cheeses, and all of the green onions. Repeat the layers with the remaining hash browns, sausage, and cheeses.
Mix the Egg Mixture
In a large bowl, whisk together the eggs, milk, salt, and pepper until well combined. Slowly and evenly pour the mixture over the layered ingredients in the crockpot.
Cook
Cover and cook on HIGH for 4 hours or LOW for 8 hours, until the eggs are completely set in the center and the casserole is puffed and golden around the edges.
Serve
Scoop into bowls or cut into squares. Serve warm with your favorite toppings or sides.

Tips

Use a slow cooker liner: Makes cleanup effortless.
Check doneness early: Cooking times may vary slightly depending on your slow cooker model.
Add veggies: Sautéed bell peppers, spinach, or mushrooms make great additions.
Make it overnight: Assemble before bed, set to LOW, and wake up to a ready breakfast.
Drain sausage well: Extra grease can make the casserole soggy.

Variations and Substitutions

Different meats: Swap breakfast sausage for bacon, ham, or turkey sausage.
Cheese options: Try Monterey Jack, pepper jack, or Colby for a different flavor profile.
Vegetarian version: Omit the sausage and add extra vegetables.
Dairy-free: Use plant-based milk and dairy-free cheese.
Spicy twist: Add chopped jalapeños or use spicy sausage for a little heat.

FAQs

Can I make this ahead of time?
Yes. Assemble all ingredients the night before, refrigerate, and cook in the morning.

Can I freeze Crockpot Breakfast Casserole?
Absolutely. Cool completely, portion into airtight containers, and freeze for up to 3 months. Reheat in the microwave or oven.

How long does it last in the fridge?
Store leftovers in an airtight container in the refrigerator for up to 4 days.

Can I double the recipe?
If you have a large slow cooker, you can double the recipe—just increase the cooking time slightly.

Serving Suggestions

Serve this breakfast casserole with:

Fresh fruit or a fruit salad
Toast, biscuits, or English muffins
A dollop of sour cream or salsa on top
Hot coffee, tea, or fresh orange juice

Why You’ll Love This Recipe

Hands-free cooking—just layer and let the crockpot do the work
Feeds a crowd effortlessly
Perfect for holidays, potlucks, or meal prep
Customizable with your favorite ingredients
Warm, cheesy, and comforting every time