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The Ultimate Overnight Slow Cooker Breakfast Casserole

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The holidays are busy, but this overnight slow cooker breakfast casserole is the best way to make your holiday easy.  From prep to clean up, this meal is the perfect way to allow a little breath and time to enjoy your family.

Overnight Slow Cooker Breakfast Casserole

Overnight Slow Cooker Breakfast Casserole

I don’t know about you, but when the holidays start, it is pretty much non-stop, so by the time Christmas hits, I am beat and the last thing I want to do is cook a huge breakfast and clean that up.  So I present you with the absolutely best slow cooker breakfast casserole that will change your holiday mornings!

savory overnight breakfast casserole

Recipe Walkthrough

Check the ingredients below and follow along as we get this slow cooker breakfast casserole made.  I always prep this right before I go to bed on Christmas Eve.  First you brown the breakfast sausage.  You could just put it in the slow cooker raw if you want, but I prefer to brown it before layering it in.

savory breakfast casserole

Next you are going to take 1/2 the bag of frozen shredded potatoes and place them on the bottom.  These will stick and you can see that I am using a slow cooker liner because again, I don’t want to clean.  I have found that if I use a butter cooking spray, the potatoes do not stick as much.

Prepping a breakfast casserole.

Next layer on a heaping amount of delicious shredded cheese. I just buy the already shredded cheese but if you want to go through the motion, you can shred your own potatoes and cheese.

layered breakfast casserole

Place about 1/2 the browned ground breakfast sausage atop the cheese.  I do try to spread this pretty evenly. Again, you could put this in raw and just spread it by hand to get it pretty even, but that is just a preference.

slow cooker liners

Complete that series of layering one more time.  Potatoes, sausage and then cheese.  I do typically do the second layer of cheese on top, but you can easily put it under the sausage.  From there, season your casserole with garlic salt.

easy breakfast casserole

Then beat together eggs and milk and poor that over the layers of potatoes, sausage and cheese. Once done, place the lid on, set it on low and cook for 8 hours.  You will wake up to a wonderfully easy and delicious overnight slow cooker breakfast casserole with super easy clean up and a relaxing holiday morning!

overnight breakfast casserole

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4.17 from 6 votes
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Overnight Slow Cooker Breakfast Casserole

This is the best slow cooker breakfast casserole that will make your life so easy, from prep to clean up, your family will thank you!

Prep Time 10 minutes
Cook Time 8 hours
Servings 10

Ingredients

  • 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

Instructions

  1. Brown the ground breakfast sausage

  2. Layer 1/2 the bag of potatoes on the bottom of the slow cooker (pro-tip, use a slow cooker liner for easy clean up)

  3. Cover the potatoes in shredded cheese

  4. Layer 1/2 the ground sausage atop the cheese and potatoes

  5. Do another layer of potatoes, sausage and cheese

  6. Season with garlic salt

  7. Beat the eggs and milk together and pour over the mixture

  8. Cook on low for 8 hours and enjoy a wonderful morning meal!

Slow cooker breakfast casserole

If you like this overnight slow cooker breakfast casserole check out this recipe.

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Recipe Rating




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Sue

Monday 17th of June 2024

It's good, but I thought it was too much potato, not enough egg and sausage.

Susan

Monday 22nd of April 2024

Have you ever used bacon instead of sausage? I don’t care for sausage . Thank you !

Laura

Tuesday 23rd of April 2024

I have not, but I am sure it would still be tasty!

Denise

Tuesday 12th of March 2024

Can I make this without the hash browns? Looking to make it for a work breakfast and have diabetic co-workers.

Laura

Thursday 14th of March 2024

Hi!

I am not sure how well that would go, but there are low carb options for hash browns like cauliflower. I have never tried it without hashbrowns and I would assume you would need to decrease both the eggs and the milk contents as the potatoes do soak up a lot of that.

Mary Oakley

Sunday 3rd of March 2024

I made this with a little apprehension about cooking eggs overnight for 8 hours. It was fantastic! Used the potatoes with green peppers and onions- next level goodness. Thank you for this recipe.

Laura

Thursday 14th of March 2024

I am so happy to hear this! Definitely want to try some veggies in my next batch!

Lauren

Thursday 11th of January 2024

Can you just leave out the milk entirely? Or is the milk an absolute must?

Laura

Thursday 11th of January 2024

I am sure you could probably use some sort of broth and it would be fine. It does need a liquid in it

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