This slow cooker egg casserole is the perfect make-ahead meal for busy mornings or a cozy weekend brunch. It's easy to customize with your favorite add-ins, making it a warm and hearty dish for any gathering.
Cook the Sausage. In a large skillet, brown the ground breakfast sausage over medium-high heat. Season with salt and pepper to taste. Drain the excess fat if necessary.
1 pound ground breakfast sausage
Add the Veggies. Toss in the onions, green peppers, and potatoes. Cook for about 5 minutes, until the onions are soft and translucent. Transfer the sausage and veggie mixture to the slow cooker insert and set aside.
1/2 onion, 1 green bell pepper, 2 russet potatoes
Scramble the Eggs. In a large mixing bowl, whisk together the eggs and milk until thoroughly combined. Season with salt and pepper to taste.
12 whole eggs, 1/2 cup whole milk
Combine Everything. Pour the egg mixture into the slow cooker with the sausage and veggies. Add the Parmesan cheese, then stir everything together gently to combine.
1 cup parmesan cheese
Cook. Cover and cook on Low for 7–8 hours or High for about 4 hours, until the center is set and a knife inserted in the middle comes out clean. Every slow cooker heats a little differently. Mine is usually done on Low in about 4 hours, so start checking around then.
Notes
Try making this recipe during the day the first time to gauge your slow cooker’s timing. Mine cooks in about 4 hours, but some take up to 8. Then, you’ll know how to adjust for overnight.
Many sausage brands are seasoned well enough that you don’t need to add anything else, but you can always include your favorite herbs and spices if you’d like.
This recipe is great for meal prepping. Just reheat portions throughout the week for a quick and easy breakfast.
Swap or add ingredients based on what your family likes best.