Overnight Sausage and Egg Breakfast Casserole

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This Overnight Sausage and Egg Breakfast Casserole is a classic breakfast in our house! I’ve been having it on holiday mornings since I was a kid and have carried the tradition into adulthood. It’s a wonderfully easy breakfast to share as a family on busy holiday mornings!

Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!

An Easy Overnight Breakfast Casserole

Every Christmas for as long as I can remember, we’ve had this breakfast casserole for breakfast. We also tend to have it for Thanksgiving, Easter and any day it seems appropriate. Shoot, the hubs would happily have it all year long.

Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!

Of course since Christmas is also my birthday, I have added my own little tradition to the mix. Not only do we have this breakfast casserole for the savory lovers, but we also have this Cake Batter French Toast Casserole – and yes, I eat it with the frosting warmed up and poured all over it. 🙂 Oh my gosh, I’m drooling just thinking about having it again a week from today. Now if you head over and check out that casserole – and I hope you do – you’ll have to excuse the bad old photos. If you want to see where I started as far as photography, check that out. 🙂 Also, there’s a pretty long and hilarious story that we still talk about to this day. Good times.

But back to the savory casserole! This is the one that makes you feel a little healthier and like it’s ok to indulge in the birthday one. Even if you aren’t celebrating my birthday on Christmas, there’s Jesus’ birthday too. 😉

Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!

How to Make this Breakfast Casserole Recipe

Anywho, this casserole is maybe the easiest thing ever to put together. There are so many versions out there, but this is the one I use and love. It’s wonderful to wake up in the morning and have it ready to go straight into the oven. On Christmas, we often pop it the oven, then open some presents while it bakes.

To get started making it, there’s some bread. I don’t use fresh bread from the bakery in this one, like I would a french toast casserole, because I don’t want anything too firm or crunchy. I want the eggs and sausage to shine in here. I tend to use a regular loaf of bread, often of the sourdough variety because I love it. But really any should work just fine.

Sausage and cheese are sprinkled over the bread and let’s be honest, you can’t go wrong with either of those. A full pound of sausage and two cups of cheese should be plenty, but if you feel the need for more you go for it!

Then we’ve got eggs, milk, and some dry mustard, salt and pepper for flavor. The whole casserole is covered and stored in the fridge overnight. Baking it the next morning couldn’t be easier!

You may need to bake it for a little more or less time depending on your oven and how soft or “runny” you prefer the casserole to be. I don’t really like it to be runny, but I also don’t want it to dry out. To check it, use a fork or knife to stick in the middle and see how soft it still is. When it’s done, you’ll definitely be rewarded!

Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!

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Recipe

Overnight Sausage and Egg Breakfast Casserole

  • Author: Life, Love and Sugar
  • Prep Time: 5 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour
  • Yield: Serve 8-10 1x
  • Category: Breakfast
  • Method: Oven
  • Cuisine: American

Description

This Overnight Sausage and Egg Breakfast Casserole is a classic in our house! I’ve been having it on holiday mornings since I was a kid and have carried the tradition into adulthood.


Scale

Ingredients

  • 6 slices bread, cubed*
  • 1 lb sausage, browned and drained
  • 2 cups shredded cheddar cheese
  • 8 large eggs
  • 2 cups milk
  • 1 tsp dry mustard
  • 1 tsp salt
  • Pepper, to taste

Instructions

1. Spread the bread evenly into the bottom of a greased 9×13 inch baking dish.
2. Sprinkle the sausage and cheese evenly over the bread.
3. In a large measuring cup, combine the eggs, milk, dry mustard, salt and pepper.
4. Pour the egg mixture evenly over the ingredients in the pan.
5. Cover and chill overnight.
6. Prior to baking, preheat the oven to 325 degrees. Bake for 45-55 minutes, or until set. Cover it loosely for the first 30 minutes or so, then bake uncovered for the reminder. You may need to bake it for a little more or less time depending on your oven and how soft or “runny” you prefer the eggs to be. I don’t really like it to be runny, but I also don’t want it to dry out. To check it, use a fork or knife to stick in the middle and see how soft it still is.
7. Remove from oven when done and serve warm.

*I like to use a little bit sturdier bread. Often I use the Pepperidge Farms Sourdough loaf.


Keywords: overnight breakfast casserole, holiday brunch casserole, holiday breakfast recipe, sausage breakfast casserole, breakfast casserole recipe

Enjoy!

Overnight Sausage and Egg Breakfast Casserole - a classic for holiday mornings!

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Recipe rating

79 Comments
  1. Dana

    HI Lindsey,

    This recipe was delicious! I made it Christmas morning. I liked it so much that I made it again using left over everything and sesame seed bagels from Panera. It was amazing. I would recommend it.

    Best,

    Dana

  2. Dave Sabatelli

    Lindsay this casserole looks like something my wife has made but hers doesn’t have sourdough bread. We are retired but recently started an e commerce business so we are on the computer every morning this would be a great breakfast to start the day and a break from the same old routine. I think I’ll try individual casseroles. Thanks for the idea and the pictures are great.

  3. Catherine (Cathy) Zimmer-Finken

    This was soooo good!  I decided to use sausage in my turkey stuffing so decided to cook the sausage needed for both recipes at the same time. That included adding  chopped onion, celery and apple to the pan.  I split the needed amount and it kept well in the fridge.  I was so tired at Christmas that I didn’t put it together or make it for two days.  Just heated the sausage mixture for a few seconds in the microwave before adding it to the bread,  Finished as instructed and let it sit in the fridge overnight.  It was a tiny bit tricky trying to decide when it was ready formed, tiniest bit runny but wonderfully soft and fluffy.  (Misc tip: I also tend to use 1/2 & 1/2 for recipes calling for milk during th the holidays.). This casserole was filled with so much flavour…it was like a party in my mouth!!  My on regret is that I did t make it earlier.  Thanks for sharing.  

  4. Teija

    Made this last night and brought it in to work this morning. They loved it – I’ve had 3 requests for the recipe! Loved your Christmas update and pictures. You look SO happy and healthy! I’m so excited and thrilled for you guys!

    1. Perrin

      There is a recipe exactly like this on all recipes with just 4 eggs. Can you tell me the benefits to using more eggs? 

      1. Lindsay

        I’m not really sure what other recipes you’re referring to. If mine has more eggs then it’s just a different ratio of eggs to other things. I suppose it may just be a preference.

  5. Sarah C.

    I have been thinking about this casserole for weeks! My aunt used to make it every Christmas when our whole family would get together at my grandparents’ house. 20+ people sleep’n on floors and everything. I miss it so much. I want to restart (part of) the tradition (can’t find the exact recipe, but this one is the closest). My aunt used part-Velveeta, and it made it soooo rich!
    ALSO, OMG I am going to try YOUR (b-day) “french toast” recipe…this may fit in to a perfect new tradition. My son’s b-day is the day before Christmas eve, and my dad’s b-day is the day after Christmas. My dad would LOVE this, instead of cake, for sure!
    Gosh, I might have to take this one up to my aunt, an additional spin on her “traditional” egg and sausage casserole. THANK YOU! You just pieced together my new-and-old tradition. Just what I was looking for!

    1. Lindsay

      It’s certainly a fun tradition for us to have both casseroles, so I hope you enjoy them! Thanks Sarah! Merry Christmas!

      1. Rick Bunch

        We have this for Christmas every year. We sub half the cheese for swiss. Yum!

  6. Nancy

    We call this the Christmas morning casserole at my house. We have had it on Christmas morning for more than 20 years.

    1. DrNancy

      This will be my new go-to for Christmas morning for sure. I added fire roasted green chilies to rave reviews!

Lindsay
About Lindsay

I'm a wife and mom to twin boys, a baby girl and a sweet black lab with a serious sweets addiction! Bring on the sugar!

Scripture I’m Loving

“Be joyful in hope, patient in affliction, faithful in prayer.” Romans 12:12