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!

Overnight breakfast casserole on white plate.

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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. The flavors are perfect for Christmas morning, and make the best leftovers as well!

breakfast casserole in casserole dish.

Overnight Breakfast Casserole Recipe

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.

If you are looking for more amazing breakfast recipes, here are some of my favorites: Breakfast Quesadillas, Homemade Waffle Recipe, Homemade Pancakes! Be sure to try my Farmer’s Breakfast Casserole too!)

A layer of crescent rolls, sausage, hash brown potatoes, cheese, and eggs in a 9×13 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.

Ingredients for Overnight Breakfast Casserole

  • Eggs
  • 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
  • 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.

Variations

Here are a few ingredient variations and substitutions that will work well on this simple breakfast casserole.

  • 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 nutrients, mix in spinach, mushrooms, onions, or fresh pepper slices. 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!

How To Make Overnight Breakfast Casserole

how to make breakfast casserole steps.
  1. Add dough to the pan: Place crescent dough in the bottom of a greased 9×13 pan.
  2. Layer the sausage: Layer sausage, potatoes & cheese in the order given.
  3. Mix ingredients: Mix the eggs and milk in a large bowl. Pour over casserole.
  4. Chill: Cover, and refrigerate overnight.
  5. 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.

Quick Tip

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 and is super easy to do!

how to make egg and sausage casserole.

How to Store Overnight Breakfast Casserole

After your casserole has cooled, you can loosely cover the dish and store it in the fridge for 2-3 days. Reheat the casserole in the microwave until it is nice and hot again.

This breakfast casserole freezes well, too! Bake the casserole completely, and allow it to cool. Then, cover it tightly with plastic wrap followed by aluminum foil, and store it in the freezer for up to 2 months.

To serve, thaw leftovers in the fridge overnight, and reheat in the oven at 350ºF for about 20 minutes or until heated through.

piece of overnight casserole recipe on white plate.

FAQs

Do you cover breakfast casserole when baking?

I bake this breakfast casserole uncovered. I like the cheese to get a little browned on top!

Can I make this recipe ahead of time?

Yes! Store the unbaked casserole in the fridge for up to 1 day. Or, assemble the ingredients, and freeze them unbaked for 2 months. Cover it tightly with plastic wrap and aluminum foil. When you’re ready to eat, thaw the casserole in the fridge overnight, and bake as the recipe card states.

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 the leftover casserole with a piece of foil so the moisture will not escape and to ensure even heating.

Overnight Breakfast Casserole on a plate.

Overnight Breakfast Casserole

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!
3.90 from 123 votes
Course: Breakfast
Cuisine: American
Author: Kasey Schwartz
Servings: 12 servings
Prep Time: 30 minutes
Cook Time: 45 minutes
Total Time: 1 hour 15 minutes

Equipment

  • 9×13 baking dish
  • Mixing bowl

Ingredients  

  • 1 package refrigerated crescent rolls
  • 1 pound browned hot sausage
  • 1 half package of 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, 1 half package of 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

Nutrition

Serving: 1serving | Calories: 308kcal | Carbohydrates: 13g | Protein: 15g | Fat: 22g | Saturated Fat: 9g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 7g | Trans Fat: 0.1g | Cholesterol: 129mg | Sodium: 556mg | Potassium: 253mg | Fiber: 0.3g | Sugar: 4g | Vitamin A: 339IU | Vitamin C: 2mg | Calcium: 162mg | Iron: 1mg
Keyword: breakfast, breakfast casserole, casserole, eggs
Did you make this recipe?Mention @kasey_allthingsmamma or tag #allthingsmamma!
overnight breakfast casserole topped with cheese.

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About Kasey Schwartz

For over 15 years, Kasey Schwartz, the mastermind behind All Things Mamma, has been the ultimate go-to for mouthwatering family recipes. Her work has been featured on Today.com, Buzz Feed, Better Homes and Gardens, and more, making her your go-to mom next door for all things delicious and family-friendly.

Comments

  1. Bonnie Hamblin says:

    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!

    1. Shyanne - ATM Team says:

      We’re so glad it turned out well for you, Bonnie!

  2. Should the sausage be Italian or breakfast sausage? I assumed breakfast, but I have never seen hot breakfast sausage.

  3. Arizona Mama says:

    4 stars
    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.

  4. 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

  5. Lanora Bradley says:

    Can you use a aluminium disposal pan? And how much does this feed?

  6. Louise Eason says:

    1 star
    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.

  7. Can I use a disposable tin casserole pan for the casserole?

  8. BethMoore says:

    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.

  9. Judy Bertoson says:

    5 stars
    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!!

    1. Kasey Schwartz says:

      Wonderful!! I am so happy to hear that!

    2. April L. Danford says:

      Will you make a vegan version with Just egg, vegan sausage (should it be patties or links), unsweetened almond milk, plant-based cheese ?

  10. Do you thaw the hash browns?

    1. No – they go in frozen.

  11. Oh 5 stars! Great recipe!

  12. 5 stars
    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.

      1. Do you cook the sausage before adding it to the dish?

      2. Beth Moore says:

        Sausage should be cooked before adding to the dish!

      3. 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

      4. Just found the measurements in the recipe! My mistake. Thank you

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