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This overnight breakfast casserole is a brunch dish that practically makes itself! Just assemble the layers of crescent roll dough, hashbrowns, sausage, eggs, and cheese the night before and you’ve got the perfect egg and sausage bake ready to pop in the oven in the morning. Now that’s stress-free hosting!
Breakfast casseroles are some of my most popular recipes, especially for the holidays! This Easy Breakfast Casserole has been shared and saved almost 200,000 times! My Crescent Roll Breakfast Casserole is another reader favorite.
Why you’ll love this overnight egg and sausage bake recipe!
One of my favorite parts of the day is breakfast. I am one of those people who has to eat something to start the day. Plus, it’s good for you!
This Overnight Breakfast Casserole is one of my go-to when I’m craving an egg casserole. Like my hashbrown casserole recipe, the flavors are perfect for Christmas morning, and make the best leftovers as well!
- Make-ahead magic: Assemble tonight, bake tomorrow for a fresh breakfast with minimal morning fuss!
- Feeds a crowd: Ideal for brunch with family, friends or weekend guests.
- Hearty and filling: With sausage, eggs, cheese, and potatoes, this breakfast bake is so satisfying.
- Leftovers reheats beautifully: So any leftovers will make your weekday mornings that much easier!
Ingredients for Overnight Breakfast Casserole
See recipe card below this post for ingredient quantities and full instructions.
- Eggs – You can’t make a breakfast casserole without cracking a few eggs! Don’t try to lighten this up by using egg whites; they’ll make your casserole rubbery.
- Sausage – I like to use spicy sausage, but any heat level will do! Turkey sausage, chicken sausage, and sweet apple sausage will all work well, too.
- Hashbrown potatoes – You’ll also love this Hashbrown Egg Bake!
- Cheese – I love to use sharp cheddar cheese in this recipe. Don’t forget to sprinkle extra cheese on top.
- Milk – You can use any kind you have on hand, but whole milk will give you the richest flavor and creamiest texture.
- Crescent rolls – Some people make this with bread, but I really love the flavor of crescent rolls.
Variations
- You could definitely switch up the meat or cheese to suit your flavor preferences. Try ham and Swiss or bacon and Colby jack. It’s going to be good!
- If you want to add in some veggies, mix in spinach, mushrooms, onions, or fresh pepper slices. This overnight breakfast bake is really versatile!
How To Make Overnight Breakfast Casserole
- Add dough to the pan: Place crescent dough in the bottom of a greased 9×13 pan.
- Layer the sausage: Layer sausage, potatoes & cheese in the order given.
- Mix ingredients: Mix the eggs and milk in a large bowl. Pour over casserole.
- Chill: Cover, and refrigerate overnight.
- Let rest: Let the casserole rest on the counter and come to room temperature while the oven preheats to 350 degrees. Bake uncovered for 45 minutes or until the eggs are just set in the center, being careful to not overbake. Let the casserole stand for 10 minutes before serving.
Serving Suggestions
- Muffins: Serve your overnight egg and sausage bake with Pancake Muffins or Pumpkin Apple Muffins.
- Fruit: For a holiday brunch, pair it with this Christmas Fruit Salad!
- Biscuits: Can you ever go wrong with Classic Buttermilk Biscuits? I don’t think so!
How to Store Overnight Breakfast Casserole
- Unbaked (assembled): Cover tightly and refrigerate up to 24 hours before baking.
- Baked leftovers: Store airtight in refrigerator and eat within 3–4 days. Reheat in a 350 °F oven or microwave individual slices, adding a splash of milk if needed.
- Freezing: Freeze full baked casserole or individual slices in freezer-safe bags for up to 2–3 months. Thaw in fridge overnight before reheating.
- Reheating tip: For a crisp top again, place reheated slices under the broiler for 1–2 minutes or finish in a pre-heated skillet.
Frequently Asked Questions
I bake this breakfast casserole uncovered. I like the cheese to get a little browned on top!
You can safely refrigerate for up to 24 hours before baking. Any longer (unless tightly covered) may affect texture or food safety.
Absolutely. The hash browns, sausage, and cheese still make this breakfast bake super satisfying!
Yes, you can assemble and bake it immediately.
More Breakfast Casseroles
Breakfast Casseroles
Tater Tot Breakfast Casserole
Breakfast Casseroles
Ham & Cheese Breakfast Casserole
Breakfast Casseroles
Sausage Hashbrown Breakfast Casserole
Breakfast Casseroles
Breakfast Casserole with Biscuits
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Overnight Breakfast Casserole
Equipment
- 9×13 baking dish
- Mixing bowl
Ingredients
- 1 package refrigerated crescent rolls
- 1 pound browned hot sausage
- ½ package Ore-Ida O’Brien frozen potatoes
- 2 cups shredded cheese (I like cheddar)
- 6 large eggs
- 2 cups milk (I like whole milk)
Instructions
- Place crescent dough in the bottom of a greased 9×13 pan.1 package refrigerated crescent rolls
- Layer sausage, potatoes & cheese in order given.1 pound browned hot sausage, ½ package Ore-Ida O’Brien frozen potatoes, 2 cups shredded cheese
- Mix eggs and milk together in large bowl. Pour over casserole.6 large eggs, 2 cups milk
- Cover and refrigerate overnight.
- Let rest on counter while oven preheats to 350 degrees. Bake uncovered for 45 minutes or until eggs are just set in center, being careful to not overbake. Let stand for 10 minutes before serving.
Video
Notes
- Add some heat: Add a little spice to your casserole by whisking in 1/2 a teaspoon of cayenne pepper to the milk and eggs. This will give the casserole a nice kick of heat.
- Allow it to set: Let the casserole rest 10-15 minutes after baking; this helps it set and makes slicing cleaner.
- Broil the top: Want a golden top? Broil 1-2 minutes at the end of the baking time (watch closely).
Just wanted to say that this is STILL a family favorite recipe! My kids ASK for it all the time and it always turns out great!!
Recipe was amazing. Simple and tasty. Everybody loved it.
The website, however, was so dynamic, with so many ads, that the recipe kept jumping around, making it impossible to keep my place. This is the first All Things Mamma recipe I’ve tried and I’m less inclined to try more if they’re all so ad heavy that they defeat the purpose.
Dear Mama, (Kasey)
This Grandma has been making this recipe for over 20+ years now. However, I lost my exact recipe for the exact amount of everything. I looked up numerous recipes until I found yours. Yours was EXACTLY how I make it. And, now I have copied again and EVERYONE ENJOYS IT TREMENDOUSLY. Especially my Aunt Barb and Son, Kody. Thanks for having the correct recipe.
I doubled the recipe, and it turned out great. I did use Half and Half cream for half of the milk. The O’Brien potatoes was a nice touch. It fed a crowd and everyone raved!
We’re so glad it turned out well for you, Bonnie!
Should the sausage be Italian or breakfast sausage? I assumed breakfast, but I have never seen hot breakfast sausage.
This was good but I would sprinkle a little salt on the potatoes before adding the cheese. I used turkey breakfast sausage patties, cubed and heated.
Make sure It is room temperature before putting it in the oven, and have the oven hot when you put it in to bake it. Bake the casserole on a lower rack and you shouldn’t have the problem with the dough
Can you use a aluminium disposal pan? And how much does this feed?
I”m sorry, but it was not good at all. None of my guests would eat it. I had to throw it away. I did substitute hash browns for the potatoes.
Simply Delicious!
Can I use a disposable tin casserole pan for the casserole?
Did anyone have the issue of the milk and egg mixture seeping to/under the crescent roll dough? Half of my dough was able to get properly cooked, but the other half just looks & feels like a squishy nasty mess : ( I tried sealing the sides in a bit but I guess I didn’t realize how much I should have tried.
My husband made this for Christmas morning and we both love it. We enjoyed it so much that he is going to make it again for New Years morning but we are going to try it with ham and garlic and onion powder. I can’t wait!!
Wonderful!! I am so happy to hear that!
Will you make a vegan version with Just egg, vegan sausage (should it be patties or links), unsweetened almond milk, plant-based cheese ?
Do you thaw the hash browns?
No – they go in frozen.
Oh 5 stars! Great recipe!
Substituted sausage for cooked bacon and added garlic & onion powder, salt and pepper.
It was good but next time I am going to try it with goetta.
Yummy!!
Do you cook the sausage before adding it to the dish?
Sausage should be cooked before adding to the dish!
I’m baking this dish right now. I love your ideas and recipes but really would have liked the measurements included in the recipe. i.e how many ounces of hash browns, how much milk etc. We will see in a few minutes
Just found the measurements in the recipe! My mistake. Thank you