Easy Overnight Breakfast Casserole (2024)

Assemblethis EasyOvernight 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!

EasyOvernight Breakfast Casserole (1)

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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!

EasyOvernight Breakfast Casserole (2)

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.

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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

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  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!

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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.

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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 toreheat, 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 casserolewith a piece of foil so the moisture will not escape and to ensure even heating.

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EasyOvernight Breakfast Casserole (16)

Overnight Breakfast Casserole

Assemblethis EasyOvernight 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!

3.88 from 128 votes

Pin RecipeSave RecipeRate RecipePrint Recipe

Course: Breakfast

Cuisine: American

Author: Kasey Schwartz

Servings: 12 servings

Prep Time: 30 minutes minutes

Cook Time: 45 minutes minutes

Total Time: 1 hour hour 15 minutes 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

Did you make this recipe?Mention @kasey_allthingsmamma or tag #allthingsmamma!

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Categories: Breakfast, Casseroles, Pork, Recipes

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.

Read More About Me

Easy Overnight Breakfast Casserole (2024)

FAQs

Why do you have to refrigerate breakfast casserole overnight? ›

The casserole is covered and refrigerated overnight to allow the liquid ingredients to be absorbed into the bread. This is a perishable mixture and should be cooked the morning or day after assembly. Bake in an oven set no lower than 325 °F. Most recipes suggest 350 °F.

Can you make egg casserole 2 days ahead without? ›

Cover the casserole and store it (unbaked) in the refrigerator overnight or up to one day. Bake in the morning, according to recipe instructions. To freeze breakfast casserole prepare the recipe and add to your pan. Cover well with plastic wrap and then tinfoil and freeze for 2-3 months.

Why is my breakfast casserole soggy? ›

Pre-cook the veggies. Veggies are naturally watery. As they cook, they release that moisture. If they only cook in the casserole, all that extra moisture will also be IN your casserole.

How do you keep breakfast casserole from falling? ›

For a puffy egg casserole, you can prevent falling by cooking at a lower temperature, as with this recipe.

What happens if you forget to put casserole in the fridge overnight? ›

Myth: You shouldn't put hot foods in the refrigerator.

Perishable foods should be put in a refrigerator that is 40 degrees or below within 2 hours of preparation. If you leave food out to cool and forget about it after 2 hours, throw it away.

How long can overnight breakfast casserole stay in the fridge? ›

Preheat the oven to 375°F (191°C). Bake the casserole, uncovered, until the top is golden, edges are crisp, and a toothpick inserted in the center comes out clean, about 40–45 minutes. Cool for 10 minutes, then slice and serve. Leftovers keep well in the refrigerator for up to 5 days.

Can you make a casserole with raw egg and leave it uncooked overnight in the fridge? ›

Yes! You can assemble this casserole the night before, wrap it tightly and then refrigerate until the next morning. Then, bake according to recipe directions.

Can you make a casserole with raw eggs ahead of time? ›

Can You Make Egg Casserole Ahead of Time? This easy egg casserole is the perfect make-ahead breakfast. Simply combine the ingredients the night before and place the mixture in a prepared baking dish, then cover it tightly with storage wrap or foil. In the morning, bake the casserole according to the recipe.

Can you leave raw egg mixture in the fridge? ›

If you've got raw egg yolks or whites left over from a recipe which you don't want to waste (let's face it, why would you?), you can store them in the fridge as long as you plan to use them within the next few days.

How do you know when breakfast casserole is done? ›

How do you know when breakfast casserole is done? Just stick a knife into the center of your egg casserole recipe after 55 minutes of baking. If it comes out clean, your baked egg casserole is ready!

What are the 5 components of a casserole? ›

Let's talk anatomy: A standard dinner casserole usually includes a protein, a starch, a vegetable, a sauce (or other binding ingredient), and cheese. But making a casserole is not an exact science, and you can definitely break away from this formula. Check out some fun side-dish casseroles and desserts below!

What is the best way to reheat a breakfast casserole? ›

Cool to room temperature. Wrap tightly with foil or plastic wrap and refrigerate overnight, then reheat in a 375 F oven for 30 minutes the next morning until the casserole is browned and heated through.

Can egg bake sit out overnight? ›

Never leave cooked eggs or egg dishes out of the refrigerator for more than 2 hours or for more than 1 hour when temperatures are above 90° F. Bacteria that can cause illness grow quickly at warm temperatures (between 40° F and 140° F).

How do you moisten a dry breakfast casserole? ›

Covering the dish will trap the steam in and keep it moist while it heats. How do you moisten a dry casserole? Add a little water or milk to the top of the it before reheating.

How many days is a breakfast casserole good for? ›

Bacon Sausage Egg Casserole FAQs

Egg bake casserole is typically safe to eat for up to 5 days, though the texture is best if eaten within a day or two.

Can you eat an egg casserole that was left out overnight? ›

Follow these serving guidelines for eggs and egg dishes.

Never leave cooked eggs or egg dishes out of the refrigerator for more than 2 hours or for more than 1 hour when temperatures are above 90° F. Bacteria that can cause illness grow quickly at warm temperatures (between 40° F and 140° F).

Can you leave breakfast casserole out overnight? ›

The U.S. Department of Agriculture (USDA) food and safety basics states cooked food can be left at room temperature up to two hours. If the temperature outside (or inside your house) is 90°F or above, you should cut that time in half.

How long does it take for a refrigerated casserole to come to room temperature? ›

How long does it take a refrigerated casserole to come to room temp? Depending on the size of the dish and the density of its contents, it takes about an hour for to come up to room temperature. Add more time for a larger pan or one with dense contents.

How long to refrigerate casserole before baking? ›

Unless food will be frozen, it's safest and will provide the best quality product to start preparing most perishable foods no more than a day before a meal. For example, assemble a vegetable casserole a day in advance, refrigerate and then bake the day of your dinner.

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