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World’s Best Breakfast Casserole

Home » Recipes » Breakfast » World’s Best Breakfast Casserole

Published May 12, 2021 Last Updated June 1, 2021 / By Jessica 147 Comments

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Hands down, this the best breakfast casserole recipe you will ever make. Filled with sausage, eggs, cheese and veggies, it is to-die-for! You will want to make breakfast recipe again and again.

two slices of breakfast casserole stacked on a small white plate

Mmmmm, breakfast food. Literally, I could eat breakfast three meals a day. I know I’ve mentioned this, but we have breakfast for dinner at least once a week! The awesome thing about breakfast foods (aside from the deliciousness factor) is that they are so affordable and generally quick to throw together. 

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World’s Best Breakfast Casserole

Whenever I crave breakfast casserole, this is the recipe I go straight to. No other breakfast casserole recipe I’ve tried or tasted can compare.  We make this for Thanksgiving breakfast or Christmas breakfast almost every year. We’ve made it for visitors so many times that now our family expects it when they come to visit. It’s one of the most popular recipes on our site, and for good reason! 
 
If you love breakfast food as much as we do you will also want to save our Easy Overnight Waffles and The Best Crepe Recipe Ever! Check out all of our delicious Breakfast recipes here. 
 
What do you say we get down to the nitty gritty details?

Ingredients

  • Eggs
  • Sausage (we like Jimmy Dean breakfast sausage for this casserole)
  • Red and Green Bell Peppers
  • Onion
  • Mushrooms (optional)
  • Cheese
  • Sour Cream (light)
As you are chopping these ingredients, you might think “wow, this is a lot of sausage” “wow, this is a lot of onion” or “wow, this is a lot of mushrooms.” The answer is, yes. There is a lot of STUFF in this casserole. I love that about it. It doesn’t taste “eggy” it tastes delicious.

Instructions: 

Preheat your oven to 350 degrees F and prepare a 9×13 baking dish with cooking spray.

collage of steps to make breakfast casserole, sausage, onion and bell peppers, eggs and cheese, then mixed

  1. Brown sausage. Let it cool and drain on paper towels while you prep the other ingredients. 
  2. Finely chop veggies and set aside.
  3. Mix eggs, sour cream and cheese together in a large bowl. 
  4. Add veggies and sausage to the egg mixture and mix them all together. 

Pour mixture into the prepared baking dish and 

Breakfast Casserole mixed together but not cooked yet

Bake at 350 degrees F for 45 minutes (or until the casserole is cooked through) and the top is slightly browned on the edges. There should not be any jiggling in the middle!

 

birds eye view of a pan of the worlds best breakfast casserole recipe next to a spatula

Pro Tips:

Since there are so many veggies, we like to use a food processor to chop everything! Sometimes we even cheat and buy the pre-chopped onion and bell peppers at the grocery store. It save a lot of time in a pinch!!

How long will this breakfast casserole last in the fridge?

It will stay good for 5-6 days in the fridge.

Can this casserole be assembled ahead of time? 

Absolutely! In fact, most of the time when I make this recipe I prepare it the night before, and then stick it in the fridge overnight. We pop it into the oven first thing in the morning. If the pan is be cold instead of room temperature, you may have to extend baking time for 5-10 minutes. 

Can you freeze breakfast casserole?

Breakfast casserole can be frozen for up to two months after baking. Cover very tightly with plastic wrap and foil before storing your casserole in the freezer.

 More easy breakfast recipes to try:

  • Slow Cooker Breakfast Burritos
  • Easy Cheesy Breakfast Pizza
  • German Pancakes
  • Ham & Asparagus Strata
  • On-The-Go Breakfast Egg Muffins

If you try this casserole and enjoy it, we would love for you to leave us a positive comment and review! They mean so much to us. 

Breakfast casserole with sausage, eggs, cheese and bell peppers on a white plate

Best Breakfast Casserole Recipe

This cheesy breakfast casserole with sausage, eggs and veggies is to die for! 
4.92 from 25 votes
Print Pin Rate
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 12
Calories: 344kcal
Author: Pretty Providence

Video

Ingredients

  • 24 oz pre-cooked sausage
  • 10 eggs
  • 1 cup sour cream I use light
  • 1 onion
  • 1 green pepper
  • 1 red pepper
  • 8 oz mushrooms optional
  • 2 cups grated cheese

Instructions

  • Preheat oven to 350 degrees and prepare a 9x13 baking dish with cooking spray.
  • Chop sausage, onion, peppers and mushrooms.
  • In a separate bowl mix eggs, sour cream and cheese.
  • Once egg mixture is thoroughly mixed, add sausage and veggies. Pour into your prepared dish.
  • Bake for 45 minutes or until cooked through.

Notes

Make ahead: Assemble the casserole the night before but don't bake it. Cover with plastic wrap, refrigerate, and pop it into the oven the next morning. 
Since there are so many veggies, we like to use a food processor to chop everything!
 

Nutrition

Calories: 344kcal | Carbohydrates: 5g | Protein: 19g | Fat: 26g | Saturated Fat: 11g | Cholesterol: 203mg | Sodium: 546mg | Potassium: 422mg | Sugar: 2g | Vitamin A: 840IU | Vitamin C: 22.7mg | Calcium: 193mg | Iron: 1.7mg
Did you make this recipe?Mention @prettyprovidenceblog or tag #prettyprovidence!
I think you will love this as much as I do! Enjoy!
 

This recipe was originally published in June 2013, and has been updated with new photos, video, and more detailed text. 

World\'s Best Breakfast Casserole
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Reader Interactions

Comments

  1. Katie

    May 07, 2021 at 1:19 pm

    Can you half this recipe?

    Reply
    • Sarah

      May 08, 2021 at 7:36 am

      Yes!

      Reply
  2. Kari

    March 25, 2021 at 11:52 am

    Hi there! Do you need to add any salt / pepper to the recipe or does the sausage take care of that? Thanks!

    Reply
    • Jessica

      March 31, 2021 at 1:23 pm

      I usually don’t, then let people add it to their own after if needed but it is so flavorful it usually isn’t necessary!

      Reply
  3. Mylinh

    March 18, 2021 at 11:16 pm

    Do you bake this for 30 minutes if you’re making it fresh and 45 minutes if you prep the night before then bake in the morning?

    Reply
  4. Pam

    December 24, 2020 at 10:03 am

    Would love to make this for Christmas brunch. Do I sautéed onions, pepper & mushrooms prior to assembling?

    Reply
    • Sarah

      January 06, 2021 at 9:04 am

      Hi, I know we are late replying to this (we took Christmas off from working) but we do not sautee them first. We chop them up and throw them in raw and they cook with everything else!

      Reply
  5. Lauren

    December 17, 2020 at 6:55 am

    I cannot wait to try this on Christmas morning! Have you made it with hashbrowns ? I feel like that’s the only thing missing…

    Reply
    • Jessica

      December 22, 2020 at 11:54 am

      I haven’t just because it is SO GOOD as is, why add carbs if you don’t need to to please everyone, ya know? But if you try it let me know how it goes! Merry Christmas!

      Reply
    • Carol Donovan

      January 01, 2021 at 6:42 am

      5 stars
      I was thinking the same thing Lauren so I tried it with hash browns and it was delicious! Will definitely be making this again.

      Reply
      • Sarah

        January 06, 2021 at 9:01 am

        Yay! So glad it turned out, we will have to try that soon!

  6. Julian

    December 06, 2020 at 9:54 am

    Looks good, thinking of making this to last me the week.

    Dumb question, but do you wash the mushrooms?

    Reply
    • Jessica

      December 06, 2020 at 12:23 pm

      Yes I do! No dumb questions :)

      Reply
  7. Rosalyn

    September 01, 2020 at 7:54 am

    5 stars
    Best egg bake I have ever made! I don’t love the texture and taste of eggs I really have to be in the mood to eat them especially for breakfast. This recipe really blew me away. The sour cream makes the texture so perfect too. I thought there would be too much stuff and not enough eggs but it was the perfect ratio for me. Thanks for an awesome recipe!

    Reply
    • Sarah

      September 01, 2020 at 2:38 pm

      So glad you loved it! We feel the same way!

      Reply
  8. Vicki

    April 04, 2020 at 10:43 am

    5 stars
    This is truly the best egg casserole! I half the meat and use 18 eggs. And you know how cheese just disappears when it’s mixed in eggs? Well I put all the cheese on top and cover it to bake so I can enjoy all that cheesy goodness!

    Reply
    • Jessica

      April 05, 2020 at 5:41 pm

      Wow great ideas! Thanks so much Vicki, I’m so glad you love it!

      Reply
  9. Amanda

    March 02, 2020 at 10:51 am

    5 stars
    Excellent! I always come back to this recipe and make variations. Thank you for posting – it’s one of my favorites!

    Reply
    • Sarah

      March 02, 2020 at 3:05 pm

      YAY! We are so glad to hear that. It’s one of our go-to recipes too! Always a winner!

      Reply
  10. Sarah Collins

    February 10, 2020 at 6:27 pm

    5 stars
    Made this casserole tonight for dinner. Absolutely delish!!!

    Reply
    • Sarah

      February 11, 2020 at 11:11 am

      So glad you liked it!!

      Reply
  11. Debra

    December 29, 2019 at 6:10 pm

    I make this delicious casserole every week,my family loves it! Thank you Natasha :)

    Reply
    • Jessica

      January 01, 2020 at 9:27 pm

      That makes our day! Thank you so much!

      Reply
  12. Pat Sadler

    December 15, 2019 at 7:00 pm

    Can I make this the day before, refrigerate then heat up Christmas morninb? Also can I use ham instead of sausave?

    Reply
    • Sarah

      December 16, 2019 at 11:01 am

      Yes, you can totally do that! This reheats like a dream. And, yes, ham works. Honestly this casserole can be customized in so many ways. It’s delicious however you do it.

      Reply
  13. Noelle Tabor

    December 15, 2019 at 3:19 pm

    5 stars
    I made this yesterday, and it was great! A bit of reassurance: if you cook for 45 minutes and it’s still soupy in the middle, you can keep going. I cooked it for 55 and it was still soupy so I bumped up the oven to 400 degrees and went another 5, the center was cooked and the edges were brown and it was still good.

    Reply
  14. Jorene

    November 26, 2019 at 3:45 pm

    5 stars
    Great holiday breakfast

    Reply
  15. Barbara

    October 12, 2019 at 10:36 am

    Has anyone ever frozen this casserole uncooked….then thaw and bake?

    Reply
    • Relda

      August 16, 2020 at 10:10 am

      I have cooked it then cut into squares after cooled. Put in freezer zip lock bags and froze. Grab one out and reheat in microwave put on a little salsa and sour cream and off I go in the morning

      Reply
      • Jessica

        August 16, 2020 at 1:31 pm

        Thanks for sharing Relda, that is so great to know!

  16. Renee

    August 24, 2019 at 1:04 pm

    This is my favorite breakfast casserole recipe. I’ve made it many times. I always use 0% fat Greek yogurt in place of sour cream. No one knows the difference and cuts fat and calories. I think Greek yogurt tastes so much like sour cream, that I even use it on my baked potatoes. This recipe’s a keeper! Thank you!

    Reply
    • Jessica

      August 25, 2019 at 2:14 pm

      Renee you just made my whole day! Thank you for the Greek yogurt tip! We love that stuff too- can’t wait to try it in this recipe!

      Reply
  17. Becky

    December 25, 2018 at 6:13 pm

    5 stars
    Oh.My.Goodness… This was awesome! Made it for Christmas breakfast (no mushrooms since I didn’t have any on hand) with some fried potatoes and there was nothing left. (What’s with the ‘all caps” thing? The caps lock isn’t set on my keyboard but that’s how it’s coming out.)

    Reply
    • Becky

      December 25, 2018 at 6:13 pm

      Never mind… once it posted, it was ok.

      Reply
    • Jessica

      December 26, 2018 at 4:36 pm

      Hey Becky! I am SO GLAD you all loved the casserole! We made it Christmas morning too! P.S. I don’t know why it does that for some people? So funny! Anyway, thank you for the positive review it means so much to us!

      Reply
  18. Karen

    November 08, 2018 at 11:24 am

    Im Writing from ireLand. I think wHat we call saUsage is different to america? What exactly is it? I woUld love to make this at the weekend.
    Thank you

    Reply
    • Jessica

      November 11, 2018 at 9:41 pm

      Hi Karen! So sorry for the delayed response! This recipe uses ground pork sausage, sort of like ground hamburger that you would find in a roll in the meat section of the supermarket, does that help?

      Reply
      • Donna

        August 23, 2020 at 9:56 am

        5 stars
        Made it this morning. Easy and delicious! Will be my go to recipe from now on!

      • Sarah

        August 24, 2020 at 6:06 am

        Yay! So glad to hear that!

  19. eLAINE

    October 21, 2018 at 8:04 pm

    tHE ONLY PRE-COOKED SAUSAGE i KNOW THAT i CAN BUY IS THE PRE-COOKED PATTIES…IS THAT WHAT YOU MEAN? oR DO YOU MEAN 24 OZ. RAW, AND i SHOULD COOK IT BEFORE i START?

    Reply
    • Sarah

      October 22, 2018 at 7:58 pm

      You can buy it pre-cooked in patties or links and cut it up, or just cook your favorite kind of sausage (like Jimmy Dean or something) before starting to make this recipe! :)

      Reply
  20. Sabrina

    September 19, 2018 at 10:23 am

    5 stars
    Pinning this for the holidays! Looks amazing and I know my family is going to eat it up!

    Reply
    • Jessica

      September 19, 2018 at 12:48 pm

      They will love it! Thanks so much Sabrina!

      Reply
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Hey! We're Sarah and Jessica. We're BFF's and have known each other since we were 5 years old. This blog is our place to share all of our best recipes, tips, crafts and DIY projects.

You can read more about us on our about page and find us on instagram! We love making new friends.

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