Overnight Slow Cooker Breakfast Casserole

Tia Maribel
Posted on November 9, 2025
November 1, 2025
by

Overnight Slow Cooker Breakfast Casserole

The sound of sizzling garlic fills the air, mingling with the laughter of family as they gather around the bustling kitchen. The aroma of herbs and spices wafts through the doorway, wrapping you up in a warm embrace like a cherished family hug. As pots bubble away, you can hear the soft clinking of utensils against plates and the joyful banter of loved ones, each moment a reminder of the heartwarming magic that home-cooked meals bring.

In my kitchen, every dish tells a story, and my Overnight Slow Cooker Breakfast Casserole is no exception. It’s a recipe born from family gatherings, lazy weekend mornings, and the pressure of getting everyone fed before they dash out the door. This delightful casserole holds a special place in our hearts and stomachs, bringing us together to share laughter and savor each bite. It’s the dish that makes you feel grounded, wrapping you in a blanket of nostalgia and comfort with every forkful.

Why This Overnight Slow Cooker Breakfast Casserole Brings Joy to the Table

Gathering around the table has always been a tradition in our family. Growing up, I remember the sound of my abuela’s voice blending with the rhythm of sizzling bacon and wah-wahs of fresh tortillas on the comal. Meals were not just about feeding the body; they were celebrations of life and love. My Overnight Slow Cooker Breakfast Casserole is a continuation of that tradition, embodying the spirit of togetherness and warmth.

Imagine waking up to the smell of a savory breakfast that has been slow-cooking overnight while you dream of the day ahead. There’s nothing quite like it. This casserole has seen countless family celebrations from birthdays to lazy Sunday brunches. It’s a dish that fills our hearts and tummies, reminding us of home even when we are far from it. Mi familia gathers around to share stories and laughter, and this casserole is often right at the center of the table, inviting everyone to dig in.

Let’s Get Cooking!

“In my kitchen, every good recipe starts with laughter and a little music.”

This Overnight Slow Cooker Breakfast Casserole is more than just a meal; it is a tapestry of flavors and colors that unfold as you cook. The golden crispy edges, the creamy center, and the melting cheese create a beautiful canvas on your breakfast plate. It’s simple to prepare, making it the perfect start to a bustling morning. Are you ready to join me in the kitchen? Let’s gather our ingredients and bring this dish to life.

Ingredients You’ll Need for Overnight Slow Cooker Breakfast Casserole

  • 1 roll Breakfast Sausage
  • 1 30 oz bag Frozen Shredded Potatoes
  • 1 32 oz Shredded Colby Jack Cheese
  • 8-12 Eggs, beaten
  • 2-4 Cups Milk (I live at altitude, so more works, but many are going less)
  • 1 tbsp Garlic Salt

Tía’s Tip: Use fresh cilantro if you can; it brings the dish to life. Don’t shy away from experimenting with cheese types or adding a spicy kick with jalapeños.

Step-by-Step: How to Cook Overnight Slow Cooker Breakfast Casserole

  1. Brown the Ground Breakfast Sausage: In a skillet over medium heat, add the breakfast sausage. Cook until it’s browned and crumbly, releasing that savory aroma. This is your base flavor, so don’t rush it. While it’s cooking, you can savor that delicious smell and imagine how happy everyone will be when they smell it in the morning.
  2. Layer the Potatoes: Once the sausage is browned, layer half of the frozen shredded potatoes on the bottom of the slow cooker. Pro-tip: use a slow cooker liner for easy cleanup. The potatoes will form a hearty foundation for your casserole, soaking in all those lovely flavors.
  3. Add the Cheese: Sprinkle shredded cheese generously over the layer of potatoes. This step is essential — who doesn’t love a cheesy breakfast? The cheese will melt beautifully, binding all the flavors together.
  4. Layer the Sausage: Next, add half of the cooked ground sausage on top of the cheese and potatoes. This will bring richness and that comforting element we all crave at breakfast.
  5. Repeat the Layers: Now, do another layer of potatoes, followed by the remaining sausage and cheese. Each layer adds depth and flavor, transforming your simple ingredients into a celebration of tastes.
  6. Season It Up: Sprinkle garlic salt atop your layered masterpiece. A little seasoning goes a long way in elevating the dish. Take a moment to inhale that aroma; dinner is nearly ready!
  7. Prepare the Egg Mixture: In a mixing bowl, beat the eggs and milk together until smooth and creamy. This is where the magic happens. Pour the egg mixture over the layers in the slow cooker — you want everything to soak up that custardy goodness.
  8. Slow Cook to Perfection: Cover the slow cooker and set it on low for 8 hours. Now, you can drift off to sleep knowing that come morning, you’ll wake up to breakfast already made! When it starts to smell like home, you’re almost there.
  9. Serve and Enjoy: Once ready, lift the lid and let the warmth of your Overnight Slow Cooker Breakfast Casserole fill the room. Serve it warm with a side of fresh fruit or a light salad for a delightful breakfast experience.

How to Serve Overnight Slow Cooker Breakfast Casserole for Family and Friends

Setting the table with your Overnight Slow Cooker Breakfast Casserole is a beautiful way to share love with family and friends. Think about vibrant colors and textures that can complement your dish. You can serve the casserole right from the slow cooker, allowing guests to help themselves.

Consider garnishing the casserole with freshly chopped cilantro or a sprinkle of paprika for a pop of color. Serve alongside fresh fruit, such as juicy strawberries or zesty oranges, to brighten the meal with a sweet contrast. Add a few warm tortillas on the side for that extra layer of delight, inviting people to make their own breakfast-style wraps.

Family moments like Sunday lunches or backyard gatherings come alive with this casserole. Each forkful allows everyone to gather around, share stories, and indulge in the flavors. The quiet moments of enjoyment turn into memories you will talk about for years.

Keeping Overnight Slow Cooker Breakfast Casserole Fresh for Later

If you happen to have leftovers (which is rare because this casserole tends to disappear quickly), don’t worry! Store any remaining pieces in an airtight container in the fridge for up to 3 days. The flavors will meld together, making the casserole even more delicious on the next day. Just reheat it gently in the microwave or oven, and it will taste as good as new.

For longer storage, you can freeze portions of the casserole. Cut it into individual servings and wrap each one tightly in plastic wrap before placing them in a freezer-safe bag. They’ll keep for up to 2 months. When it’s time to enjoy it again, simply thaw in the fridge overnight, then reheat gently, and watch as the aroma fills your kitchen once more. Like most family stories, it tastes even better the next day!

Tía Maribel’s Flavor Secrets

  1. Swap Cheeses: Don’t hesitate to mix and match different types of cheese. Cheddar, mozzarella, or even pepper jack can add a unique twist to your casserole.
  2. Add Veggies: You can throw in some sautéed bell peppers, onions, or spinach for added flavor and nutrients. It’s a great way to sneak in extra vegetables without anyone noticing.
  3. Use Fresh Herbs: Fresh herbs create a brightness in dishes that dried herbs can’t match. Chopped chives or basil can make it feel special.
  4. Texture Play: For a bit of crunch, sprinkle some panko breadcrumbs on the top layer before cooking. They’ll crisp up beautifully during the slow cooking process.
  5. A Spicy Kick: Want to add a bit more excitement? Toss in some diced jalapeños or diced green chilies for warmth and depth.

Make It Your Own Fun Twists on Overnight Slow Cooker Breakfast Casserole

As with any cherished family recipe, this Overnight Slow Cooker Breakfast Casserole is a canvas waiting for your creative fingerprint. Here are a few fun twists you can try:

  • Sweet Breakfast Casserole: Swap the savory ingredients for a sweet take. Use croissants instead of potatoes and add fruits like bananas or berries, along with a bit of cinnamon and vanilla.
  • Seasonal Flavors: Embrace the flavors of the season. In the fall, add pumpkin puree and spices like nutmeg and clove. In the summer, use zucchini and fresh tomatoes.
  • Regional Flair: Add a touch of your local cuisine. If you love Mexican flavors, consider black beans, spicy chorizo, and top with avocado and salsa.
  • Gluten-Free Options: For a gluten-free twist, substitute the frozen potatoes with gluten-free bread cubes. You’ll still get that satisfying texture without the gluten.

No matter how you make it your own, the essence of love and home will always shine through in the flavors.

Discover More Latin Flavors

Step into our Recipe Trends page and uncover bold tastes, family-loved classics, and dishes that bring pure joy to the table. With fresh recipes waiting for you each week, there’s always something new to explore so tie on your apron and enjoy the fun of cooking!

Overnight Slow Cooker Breakfast Casserole

A heartwarming and savory breakfast casserole that combines layers of sausage, potatoes, and cheese, perfect for family gatherings and cozy mornings.
Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Servings: 8 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 350

Ingredients
  

Main Ingredients
  • 1 roll Breakfast Sausage Use your favorite brand or homemade.
  • 1 30 oz bag Frozen Shredded Potatoes These provide a hearty base for the casserole.
  • 1 32 oz Shredded Colby Jack Cheese Feel free to substitute with your favorite cheese.
  • 8-12 pieces Eggs, beaten Adjust the amount based on desired richness.
  • 2-4 cups Milk More milk may be needed at higher altitudes.
  • 1 tbsp Garlic Salt Enhances the flavor of the dish.

Method
 

Preparation
  1. Brown the Ground Breakfast Sausage in a skillet over medium heat until browned and crumbly.
  2. Layer half of the frozen shredded potatoes in the bottom of the slow cooker.
  3. Sprinkle shredded cheese generously over the layer of potatoes.
  4. Add half of the cooked ground sausage on top of the cheese and potatoes.
  5. Repeat the layers with the remaining potatoes, sausage, and cheese.
  6. Sprinkle garlic salt over the layered ingredients.
  7. In a mixing bowl, beat the eggs and milk together until smooth, then pour over the layers in the slow cooker.
  8. Cover the slow cooker and set it on low for 8 hours.
Serving
  1. Once ready, serve warm with a side of fresh fruit or a light salad.

Nutrition

Serving: 1gCalories: 350kcalCarbohydrates: 30gProtein: 20gFat: 20gSaturated Fat: 10gSodium: 800mgFiber: 2gSugar: 1g

Notes

Store any leftovers in an airtight container for up to 3 days. Freezing portions can extend storage up to 2 months. Reheat gently before serving.

Tried this recipe?

Let us know how it was!

FAQs About Overnight Slow Cooker Breakfast Casserole

Can I make this ahead of time?

Absolutely, mija! You can prepare the casserole the night before, adding the egg mixture just before cooking so it stays fresh. Then, just turn it on in the morning and enjoy.

Can I use fresh potatoes instead of frozen?

Yes! A mix of peeled and grated fresh potatoes works beautifully. Just remember to give them a little time to cook longer since they’re not pre-cooked like frozen options.

What sides go well with the casserole?

Fresh fruit, yogurt, or a light salad work wonderfully with this hearty meal. You can even serve it with extra salsa or guacamole for a flavorful twist.

Can I make this casserole vegetarian?

Of course! Skip the sausage and load up with vegetables like bell peppers, mushrooms, and spinach, or replace it with plant-based sausage.

How do I prevent my casserole from becoming soggy?

Make sure to drain any excess liquid from vegetables if you add them. Layering the potatoes well helps absorb any moisture.

Final Note From Tía Maribel

I hope this Overnight Slow Cooker Breakfast Casserole fills your home with the same joy it brings mine. With every bite, may you feel the warmth of family and the happiness of shared meals. Cooking is about love, laughter, and creating memories, and this casserole embodies it all. ¡Buen provecho and mucho amor from my kitchen to yours!

Únete a la Fiesta with Feel the Recipes

Cooking is more than recipes it’s a way to celebrate life, family, and flavor! Tía Maribel shares bold Latin-inspired dishes, cooking tips, and behind-the-scenes moments from her kitchen every day.

Come be part of our growing community and keep the celebration going:

  • Facebook – Join our family of food lovers
  • Pinterest – Save colorful, festive recipes
  • Instagram – Vibrant photos and joyful moments
  • X (Twitter) – Quick tips and spicy inspiration

Author

  • Tía Maribel, co-author at Feel the Recipes, smiling in her vibrant kitchen while preparing fresh guacamole in a traditional molcajete.

    I’m Maribel from Veracruz. I share bold Latin flavors and festive recipes that celebrate family and tradition. For me, cooking is pure joy and I want you to feel that warmth in every dish you make.

Leave a Comment

Recipe Rating