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 ½ 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 ½ 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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4.19 from 11 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 tablespoon garlic salt

Instructions

  1. Brown the ground breakfast sausage

  2. Layer ½ 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 ½ 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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123 Comments

    1. Hi, Yes I have, it doesnt cook overnight though. Its done in about 10 minutes at most...were at altitude so probably 5 for others.

  1. 3 stars
    I used 2 cups of milk and 10 eggs, and it was still too wet for me. It cooked for 8 hours on low, but I think that's too long to cook cheese in the crock pot. It had a burnt taste. I appreciated the simplicity, and it smelled good while cooking, but I'll try something else next Christmas.

    1. Thank you for your feedback. We are at elevation here in Colorado so you may want to cut the milk and you can always add the cheese in the morning about 30 minutes before you eat it.

    1. I also use Jimmy Dean, however, I will say that I add various seasonings depending on how I am feeling. A lot of people prefer to put the seasoning that they like. Veggies are great too!

  2. Vegetarian option:
    Replaced sausage with 2 cans of pinto beans and two cans of green chili.
    Cut the cheese in half.
    Used one cup of milk and 12 eggs.
    So. Good.

    1. Hi! I saute the meat and then I add the rest of the ingredients and cook on manual high pressure for about 5 minutes with a natural release.

  3. 5 stars
    Phenomenal! I have an early Easter church service, and I wanted to bring something that would be ready to go when I left- this was perfect! Raves all around! I did 2 cups milk, 10 eggs, garlic powder at each layer and salt/pepper in the egg mixture. The liner helped too. Thanks for sharing!

  4. Laura, I am planning on making this for my church coffee time I was wondering could you use half the garlic salt; seems like a lot.

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