This Slow Cooker Breakfast Casserole is a warm and filling dish made with eggs, cheese, and your choice of meats or veggies. It’s super easy to throw together and lets you wake up to a yummy breakfast!
I love how all the flavors mix together while it cooks, and the best part? No need to stand around flipping pancakes! Just scoop, serve, and enjoy while still in your pajamas. 😄
Key Ingredients & Substitutions
Eggs: The base of this casserole. If you need an alternative, you can use egg substitutes or aquafaba, but keep in mind this might change the texture slightly.
Breakfast sausage: Any kind of cooked sausage works here. You could also use turkey sausage or even skip meat altogether for a vegetarian option. Just add some extra veggies!
Bacon: You can replace traditional bacon with turkey bacon or leave it out completely if you’re keeping it vegetarian. For a smokier flavor, consider smoked paprika instead.
Cheese: Sharp cheddar gives great flavor. Feel free to swap it with mozzarella, pepper jack, or a dairy-free cheese to suit your needs.
Hash browns: Fresh potatoes can work if you don’t have frozen on hand—just dice them up very small to ensure they cook evenly. You can also use tater tots for a fun twist!
How Do You Ensure the Casserole Cooks Evenly?
The key to a well-cooked breakfast casserole is evenly mixing and spreading out your ingredients in the slow cooker. Here’s how to do it:
- Grease the slow cooker well; this helps everything slide out easily.
- Whisk eggs and milk together thoroughly to avoid any lumps.
- Layer your ingredients and make sure they’re evenly distributed in the slow cooker for even cooking.
- Cooking on low is often better for casseroles, giving the eggs time to set properly while blending flavors beautifully.
Check for doneness by inserting a knife in the center; it should come out clean when it’s ready!
How to Make Slow Cooker Breakfast Casserole
Ingredients You’ll Need:
For the Casserole:
- 10 large eggs
- 1 cup milk
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon dried Italian seasoning (optional)
- 1/2 pound breakfast sausage, cooked and crumbled
- 6 slices bacon, cooked and chopped
- 1 cup shredded sharp cheddar cheese
- 1/2 cup diced bell peppers (red or green)
- 1/4 cup diced onions
- 2 cups frozen hash browns (optional)
- Fresh parsley, chopped (for garnish)
How Much Time Will You Need?
This slow cooker breakfast casserole takes about 15 minutes of prep time and then cooks for 6-8 hours on low or 3-4 hours on high. Perfect for setting up the night before and waking up to a delicious breakfast without much effort!
Step-by-Step Instructions:
1. Get Your Slow Cooker Ready:
Start by greasing the inside of your slow cooker with non-stick spray or a little butter. This helps everything come out easily and keeps the casserole from sticking.
2. Mix the Egg Mixture:
In a large bowl, add the eggs, milk, salt, pepper, and optional Italian seasoning. Whisk everything together until it’s nice and smooth. This will be the base of your casserole.
3. Add Your Add-Ins:
Now, stir in the cooked sausage, half of the chopped bacon, diced bell peppers, diced onions, shredded cheese, and, if you’re using them, the frozen hash browns. Mix everything well!
4. Pour and Spread:
Pour the egg mixture into the prepared slow cooker and spread it out evenly. This ensures the casserole cooks evenly and nicely.
5. Cook It Up:
Cover the slow cooker and set it to cook on low for 6–8 hours or high for 3–4 hours. You’ll know it’s ready when the eggs are fully set.
6. Add the Final Touches:
Once cooked, sprinkle the remaining chopped bacon on top and garnish with fresh parsley for a pop of color.
7. Serve and Enjoy:
Cut it into slices and serve warm. This casserole pairs wonderfully with salsa or hot sauce if you like a little kick!
This hearty and flavorful breakfast casserole is perfect for family gatherings or a make-ahead brunch. Enjoy every bite!
Can I Use Egg Whites Instead of Whole Eggs?
Absolutely! You can substitute egg whites for whole eggs to reduce calories and cholesterol. A good ratio is to use two egg whites for each whole egg. Just keep in mind that the texture might be slightly different.
What Can I Substitute for Milk?
If you want a dairy-free version, almond milk, oat milk, or coconut milk work great as substitutes. Just make sure to choose unsweetened varieties to keep the flavor balanced!
How Long Can Leftovers Be Stored?
Store any leftovers in an airtight container in the fridge for up to 3 days. You can reheat individual portions in the microwave or warm them in the oven at 350°F until heated through.
Can I Freeze This Casserole?
Yes, you can freeze the casserole! Just let it cool completely, then wrap it tightly in plastic wrap and foil, or transfer it to a freezer-safe container. It will keep well for up to 2 months. Thaw in the fridge overnight before reheating.