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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. 

*This post contains affiliate links.

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. Rodney Langelier

    January 13, 2023 at 9:17 pm

    5 stars
    Good Stuff

    Reply
  2. Brenda

    April 16, 2022 at 11:44 am

    I am baking this casserole, and freezing it. What it the best directions for reheating it [for a large group] ?

    Reply
    • Sarah

      April 19, 2022 at 8:48 am

      Hey Brenda, thaw the casserole in the refrigerator overnight and bake at 350ºF (177ºC) for about 20 minutes or until heated through.

      Reply
  3. Debby Forbes

    April 15, 2022 at 7:16 am

    I sautéed the veggies a little (then cooled) before adding to eggs. Might try some spinach next time.

    Reply
    • Sarah

      April 19, 2022 at 8:43 am

      Spinach would be great!

      Reply
  4. teresa

    February 18, 2022 at 1:54 pm

    Does the sour cream take the place of milk

    Reply
  5. Coral Showalter

    December 28, 2021 at 6:14 am

    Can you cook this in a crock pot rather than baking in the oven?

    Reply
  6. Lana Goodrich

    December 21, 2021 at 12:12 pm

    5 stars
    I added potatoes instead of mushroom & onions.
    Topped with biscuits and gravy. Yummy !!

    Would share picture if I could

    Reply
    • Jessica

      January 04, 2022 at 9:30 pm

      That sounds delicious Lana! Thanks for sharing.

      Reply
  7. DIANE Reagan

    November 18, 2021 at 2:58 pm

    Do you think this would work with crescent roll or puff pastry crust ?

    Reply
    • Jessica

      November 18, 2021 at 3:17 pm

      I’m sure it would be delicious!

      Reply
    • Coral

      December 29, 2021 at 6:11 am

      Would you cook the pastry first, then add the casserole mixture and bake?

      Reply
  8. Laurie Rasor

    October 14, 2021 at 6:41 pm

    5 stars
    Have A Good Day

    Reply
  9. LB

    October 01, 2021 at 12:00 am

    Did you just use mild or sharp cheddar for the cheese?

    Reply
    • Jessica

      October 06, 2021 at 11:05 am

      I have used both and either will work great!

      Reply
  10. Beverley

    August 29, 2021 at 6:20 pm

    I saved almost all these recipes and I’m going to make the breakfast casserole for a group (10) of our best friends that come to our house for a long weekend. I’m looking forward to tasting this! Thank you for some amazing sounding recipes. Looks like I’ve got a lot of cooking ahead of me.

    Reply
    • Jessica

      August 30, 2021 at 3:07 pm

      You are so sweet! Thank you Beverley, and have so much fun with your friends, what a blast!

      Reply
  11. Nanette

    July 15, 2021 at 4:51 pm

    If I cook in a mini muffin pan, how long do you think it will take to cook ?

    Reply
    • Sarah

      July 19, 2021 at 7:30 am

      I’m sorry I’m not sure! I’ve never done it that way, I recommend just watching it and when it looks to be slightly browned on the top, it is probably done.

      Reply
    • teresa cooper

      February 18, 2022 at 1:53 pm

      I’ve made mine in the jumbo muffin tins, not quite full because they will rise. I bake mine for about 25 mins.

      Reply
  12. Larry

    June 22, 2021 at 7:15 am

    5 stars
    I did not use the mushrooms and this turned out better than I could imagine. Thank you.

    Reply
    • Jessica

      June 22, 2021 at 2:37 pm

      Yay! We are so glad you loved it, thanks for sharing!

      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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