Assemble this Easy Overnight Breakfast Casserole full of sausage, potatoes, eggs, and cheese in the evening and bake it in the morning. It’s the perfect way to start the day!
The perfection of the flavors is perfect for Christmas morning and makes the best leftovers as well. When I’m craving an egg casserole, this is my go-to dish! When I’m craving an egg casserole, this is my go-to dish!

Overnight Breakfast Casserole
One of my favorite parts of the day is breakfast. I am one of those people that has to eat something to start the day. Plus, it’s good for you!
If you are looking for more amazing breakfast recipes, here are some of my favorites! Breakfast Quesadillas, Homemade Waffle Recipe, Homemade Pancakes
I especially like to eat breakfast when it’s as delicious as this Overnight Breakfast Casserole! There’s a reason this easy breakfast casserole is requested by my family over and over again.

How to Make Overnight Breakfast Casserole
A layer of crescent rolls, sausage, hash brown potatoes, cheese and eggs in a 9×12 casserole dish makes up this delicious Overnight Breakfast Casserole that you’re going to flip for! My family looks forward to it every time we make it.
Recipe Ingredients:
- Eggs
- hashbrown potatoes
- cheese – I love to use sharp cheddar cheese in this recipe. Don’t forget to sprinkle extra cheese on top.
- milk
- crescent rolls – Some people make this with bread and bread cubes, but the flavor of the rolls is key.
Instructions to make easy Egg Casserole

Step 1. Add dough to the pan
Place crescent dough in the bottom of a greased 9×13 pan.
Step 2. Layer the sausage
Layer sausage, potatoes & cheese in the order given.
Step 3. Mix ingredients
Mix eggs and milk together in a large bowl. Pour over casserole.
Step 4. Put in the fridge
Cover and refrigerate overnight.
Step 5. Let rest
Let rest on the counter while the 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.

Variations for this Simple Breakfast Casserole
You could definitely switch up the meat or cheese in this casserole to make it to your liking. Try ham and swiss or bacon and colby jack. It’s going to be good!
If you want to add a health factor, add in spinach, onions, fresh pepper slices, or even some different flavors of cooked sausage, too. This egg mixture is really versatile.
My favorite way to serve Overnight Breakfast Casserole is to serve it with mixed fruit and coffee cake or cinnamon rolls. Mmmm! It’s the perfect breakfast or brunch meal!

Breakfast Casserole FAQS
Can you freeze breakfast casseroles?
Do you cover breakfast casserole when baking?
I bake this breakfast casserole uncovered.
Can you reheat a breakfast casserole?
When it’s time to reheat, allow the dish to come to room temperature before putting it into a hot oven. Preheat the oven to 350 degrees Fahrenheit. Cover a leftover egg-, potato- or meat-based breakfast casserole with a piece of foil so the moisture will not escape and to ensure even heating.
You can also watch me make this on Good Day Marketplace!

Overnight Breakfast Casserole
Ingredients
- 1 pkg refrigerated crescent rolls
- 1 lb browned hot sausage
- 1 half package of Ore-Ida O’Brien frozen potatoes
- 2 cups shredded cheese I like cheddar
- 2 cups milk I like whole milk
- 6 eggs
Instructions
- Place crescent dough in the bottom of a greased 9×13 pan.
- Layer sausage, potatoes & cheese in order given.
- Mix eggs and milk together in large bowl. Pour over casserole.
- 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
Nutrition

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