Crockpot Breakfast Casserole

Breakfast Casserole Ingredients

Take your breakfast to the next level with this crockpot breakfast casserole! Easy ingredients with simple ingredients that cook together perfectly. The best crockpot breakfast casserole is a crowd-pleaser!

• Sausage – Add protein to this chopped sausage. Cut the sausage into even bite-sized chunks.
• Eggs – This is the base of the breakfast casserole. Eggs are filled with nutrients and are a great source of protein.
• Milk – Adds creaminess and moisture to the egg mixture. Milk helps the eggs fluff up and become lighter.
• Potatoes – Frozen diced potatoes with red and green bell peppers.
• Tomato – Slice and chop the tomato into small pieces that are added to the crockpot.
• Cheddar cheese – Give this crockpot breakfast casserole that gooey cheesy texture with shredded cheddar cheese. Shred the cheddar cheese for it to slowly melt throughout the breakfast casserole.
• Seasonings: A pinch of salt and pepper is all you need to tie it together.

How to Make Crockpot Breakfast Casserole

Making this casserole is as easy as layering the ingredients and letting the slow cooker do its thing. Here’s my step-by-step process:

1. Cook the Sausage
   • Brown your sausage in a skillet until it’s fully cooked. Set it aside to cool while you prep the other ingredients.
2. Mix the Eggs
   • In a large bowl, whisk together the eggs, milk, salt, and pepper. This mixture will hold everything together.
3. Layer the Ingredients
   • Spray your Crockpot with nonstick cooking spray (or use a liner for easy cleanup). Layer the potatoes, sausage, tomatoes, and cheese in the slow cooker. Then pour the egg mixture evenly over the top.
4. Cook Low and Slow
   • Cover and cook on low for 6–8 hours. By morning, you’ll have a perfectly cooked, golden-brown casserole ready to serve.
5. Serve and Enjoy
   • Let the casserole rest for 10 minutes before slicing into it. This helps it set and makes serving a breeze.

Tips for Cooking Breakfast in a Crockpot

Here are a few tips I’ve picked up to ensure your casserole turns out perfectly every time:

• Grease the crockpot – Make clean up even easier! Grease with nonstick cooking spray, and butter, or use a crockpot liner to keep the breakfast casserole from sticking to the sides.
• Layer – Make sure to layer the ingredients individually. This will help the structure of the breakfast casserole hold together and be stable as well as cook properly.
• Evenly distribute – When pouring in or placing the ingredients, try to evenly distribute the ingredients in the slow cooker breakfast casserole. Each bite will have a little bit of all the ingredients. This will help the ingredients from being overcooked or undercooked.
• Cooking time – Cooking times can vary depending on the size of the crockpot.
• Don’t overcrowd – Try not to overfill the crockpot with ingredients. If it is overcrowded then the ingredients will not be able to cook properly.
• Toothpick trick – Check to make sure the crockpot breakfast casserole is done by inserting a toothpick into the middle of the slow cooker. If the toothpick comes out clean, the breakfast casserole is cooked properly.
• Let it rest – Before serving, let the breakfast casserole sit and let the flavors enhance for a few minutes before cutting and serving.

Easy Variations to Make It Your Own

This recipe is super customizable. Here are some ideas to match your tastes or what you’ve got on hand:

• Potatoes – I love using the Potatoes O’Brien because they are already chopped and they come with red and green bell peppers. This just speeds up the process for me and makes this recipe even easier. However, you can use any frozen hash brown variation. You can even use fresh grated potatoes, but the casserole will cook up a lot quicker with fresh as opposed to frozen.
• Meat – I like using sausage links because it is what my family prefers, but you can use any breakfast meat you have on hand! It just needs to be cooked first. Feel free to use sausage, bacon, turkey bacon, or ham. If meat isn’t your thing, you can use meat substitutes, or no meat at all!
• Veggies – If you have got it in the fridge, it can go in this recipe (almost, haha). We’ve used peppers, onions, green onions, mushrooms, spinach, kale, green chiles, zucchini, tomatoes, and asparagus, just to name a few. If you can find it on an omelet bar, chances are it will taste delicious in this recipe!
• Cheese – Cheddar is an obvious breakfast choice, but you can change it up! Any cheese that melts well will work. We’ve used Swiss, mozzarella, pepper jack, Monterey jack, and Colby jack before. They’ve all been great!
• Toppings – Everyone in my family likes topping this casserole with something different. We’ve tried ketchup, sour cream and salsa, sriracha, avocado, chives, cheese, and Tobasco, just to name a few. Whatever you top this with, we know you will love it!

Popular Combinations

• Denver Style – Cubed ham, green peppers, onion, and cheddar cheese are a classic and traditional omelet choice!
• California Style – Bacon, tomatoes, peppers, onion, topped with lots and lots of avocado. This is always a favorite!
• Meat Lovers – Bacon, sausage, and ham are every meat lover’s dream.
• Mushroom and Swiss – Spinach, mushrooms, and Swiss cheese are simple and tasty.
• Garden Delight – Peppers, onions, tomatoes, asparagus, mushrooms, and spinach give this veggie breakfast a healthy twist.
• Italian – Pancetta, red bell peppers, and mozzarella are all classic Italian ingredients.
• Southwest – Green chiles, jalapenos, pepper jack cheese, top with avocado, salsa, and sour cream for a complete southern taste!

Great Reviews About this Casserole

“This Crockpot Breakfast Casserole is a perfect make-ahead breakfast recipe! We had this for breakfast/brunch today and it was such a hit! I’m so glad I found your site when I was looking for a good recipe, I’m looking forward to more new great recipes.”

-Natasha

Questions About Crockpot Breakfast Casserole

How to Store and Reheat Leftovers

Learn how to properly make ahead or store the crockpot breakfast casserole! It is so easy to plan for and feed a crowd. Use your leftovers throughout the week or freeze them for a later time. All great options for having this breakfast casserole recipe more than once!

• Refrigerate: Store slices in an airtight container in the fridge for up to 4 days.
• Freeze: Wrap portions tightly in plastic wrap and freeze for up to 3 months.
• Reheat: Warm leftovers in the microwave or oven until heated through.

This Crockpot Breakfast Casserole is one of those recipes that simplifies your mornings and delivers on flavor every time. It’s hearty, customizable, and so easy to make. Whether you’re hosting a holiday breakfast or just want a no-stress meal to start your day, this casserole has you covered.

Give it a try, and let me know how you like it! Don’t forget to share your favorite variations and toppings—I’m always looking for new ideas to try. Happy cooking!