Slow Cooker Overnight Breakfast Casserole

Introduction

The Slow Cooker Overnight Breakfast Casserole is the ultimate solution for effortless, crowd-pleasing mornings—think holidays, brunches, or busy weekdays. Set it and forget it before bed, and you’ll wake up to a savory, hearty breakfast with layers of cheese, eggs, veggies, and more, cooked to perfection in your slow cooker.

This recipe is all about combining convenience with comfort. There’s no need to wake up early to cook or fuss over multiple pans—just prep at night, and enjoy a hot, satisfying meal with your family or guests by morning.

Why This Overnight Breakfast Casserole Shines

What sets this casserole apart is how it effortlessly brings together classic breakfast favorites—eggs, cheese, hash browns, and your choice of protein—into a single, cohesive dish. The slow cooking process melds the flavors and ensures every bite is perfectly tender and flavorful, making this recipe a guaranteed favorite, even with picky eaters.

Tips for Easy Preparation

Chopping veggies for your casserole couldn’t be smoother—get it done in a snap with a Mueller Pro-Series 10-in-1, 8 Blade Vegetable Chopper. It will save you time and ensure perfectly uniform pieces, which is ideal for an even cook in your slow cooker.

When it comes to layering your ingredients, always start with the potatoes or hash browns at the base, followed by veggies, meats, and then cheese. This helps everything cook evenly and creates beautiful, distinct layers.

Layering and Cooking for Flawless Results

Generously spray the slow cooker insert or use a parchment liner to minimize sticking and simplify cleanup. Try Reynolds Kitchens Brown Parchment Paper Roll for a seamless, stress-free finish—perfect for those unattended, long overnight cooks.

Once your ingredients are layered, pour the seasoned egg mixture over the top. Let the slow cooker work its magic overnight on low heat for 7-8 hours. Come morning, you’ll have a fluffy, golden casserole ready to serve with minimal effort.

Serving Suggestions and Storage

Serve this casserole straight out of the slow cooker or cut it into neat squares and transfer to a Rubbermaid Brilliance Food Storage Containers for easy, mess-free leftovers. These containers are especially helpful if you’re meal-prepping for the week or need to take breakfast on the go.

For brunch buffets, pair this dish with fresh fruit, pastries, and a refreshing drink in a Stanley Quencher ProTour Flip Straw Tumbler to round out your spread.

Nutritional Information and Serving Size

This casserole yields 8 generous servings. Each portion averages around 350–420 calories, depending on your chosen meats, cheese, and veggies. Packed with protein, it’s a robust and energy-boosting meal to start your day.

Slow Cooker Overnight Breakfast Casserole (Recap)

The Slow Cooker Overnight Breakfast Casserole is your secret to effortless, satisfying mornings. With its customizable layers, hands-off overnight cooking, and rich blend of classic breakfast flavors, it’s sure to be the star of any morning gathering.

Instructions

1. Spray your slow cooker insert generously with cooking spray, or line with a sheet of Reynolds Kitchens Brown Parchment Paper Roll for easy serving and clean-up.
2. Evenly layer the frozen hash browns or diced potatoes on the bottom of the slow cooker.
3. Using the Mueller Pro-Series 10-in-1, 8 Blade Vegetable Chopper, chop onions and bell peppers into small, uniform pieces. Sprinkle them evenly over the potatoes.
4. Add your cooked breakfast sausage or diced ham on top of the veggie layer, followed by a generous layer of shredded cheese.
5. In a large bowl, whisk together eggs, milk, salt, pepper, and any additional seasonings or add-ins you prefer.
6. Carefully pour the egg mixture over the layers in the slow cooker, making sure everything is evenly covered.
7. Set your slow cooker to low and cook for 7-8 hours overnight, or on high for 3-4 hours if preparing in the morning.
8. Once set, serve directly from the slow cooker or transfer cooled slices to a Rubbermaid Brilliance Food Storage Container for later.

Cook and Prep Times

Prep Time: 15 minutes

Cook Time: 7-8 hours (overnight on low)

Total Time: 8 hours, 15 minutes

Enjoy waking up to a ready-made, comforting, and delicious breakfast casserole that brings everyone together around the table—no morning stress required!