Hands down the best breakfast casserole recipe you will ever make. This easy, cheesy breakfast casserole with sausage, eggs and veggies is to die for! You will want to make this delicious breakfast casserole again and again!
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.
World’s Best Breakfast Casserole
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Ingredients for the Best Breakfast Casserole Recipe
- Eggs
- Sausage (we like Jimmy Dean breakfast sausage for this casserole)
- Red and Green Peppers
- Onion
- Mushrooms (optional)
- Cheese
- Sour Cream (light)
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 so it is ready to pop into the oven first thing in the morning! Because the pan will 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.
Items we use to make this recipe:
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Check out these easy breakfast recipes too:
Slow Cooker Breakfast Burritos
Easy Cheesy Breakfast Pizza
German Pancakes
Ham & Asparagus Strata
Easy Banana Cake
The Best Crepe Recipe Ever
If you try this recipe and enjoy it we would love for you to leave us a positive comment and review! They mean so much to us.
Best Breakfast Casserole Recipe
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 30-45 minutes or until cooked through.
Notes
Nutrition
This recipe was originally published in June 2013, and has been updated with new photos, video, and more detailed text.
Would love to make this for Christmas brunch. Do I sautéed onions, pepper & mushrooms prior to assembling?
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!
I cannot wait to try this on Christmas morning! Have you made it with hashbrowns ? I feel like that’s the only thing missing…
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!
I was thinking the same thing Lauren so I tried it with hash browns and it was delicious! Will definitely be making this again.
Yay! So glad it turned out, we will have to try that soon!
Looks good, thinking of making this to last me the week.
Dumb question, but do you wash the mushrooms?
Yes I do! No dumb questions :)
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!
So glad you loved it! We feel the same way!
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!
Wow great ideas! Thanks so much Vicki, I’m so glad you love it!
Excellent! I always come back to this recipe and make variations. Thank you for posting – it’s one of my favorites!
YAY! We are so glad to hear that. It’s one of our go-to recipes too! Always a winner!
Made this casserole tonight for dinner. Absolutely delish!!!
So glad you liked it!!
I make this delicious casserole every week,my family loves it! Thank you Natasha :)
That makes our day! Thank you so much!
Can I make this the day before, refrigerate then heat up Christmas morninb? Also can I use ham instead of sausave?
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.
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.
Great holiday breakfast
Has anyone ever frozen this casserole uncooked….then thaw and bake?
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
Thanks for sharing Relda, that is so great to know!
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!
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!
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.)
Never mind… once it posted, it was ok.
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!
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
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?
Made it this morning. Easy and delicious! Will be my go to recipe from now on!
Yay! So glad to hear that!
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?
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! :)
Pinning this for the holidays! Looks amazing and I know my family is going to eat it up!
They will love it! Thanks so much Sabrina!