Overnight Egg Casserole

Delicious, cheesy Egg Casserole, can be made the night before. Put in the oven in the morning and enjoy this hearty, breakfast bake!

Slice of egg casserole on white plate, with dish of remaining casserole in background with fresh parsley.

I love brunch.

Well, I love food, but I especially love brunch food.

You can eat things like overnight egg casseroles, but you can also eat french toast and cupcakes and ham and roast beef.

Pretty much anything goes when it falls in the brunch category.

Today’s recipe is one of my favorite egg casserole recipes.

Depending on the meat you have available (I have used ham, bacon and sausage…this one is made with sausage), you can change up the flavor.

You can also make it vegetarian and only use your favorite vegetables (broccoli, onion, peppers, spinach and tomato). I like to use a little combo of both a meat and a vegetable.

Today I used pork sausage and spinach. Yum.

Step by step photos showing how to make overnight egg casserole.

Easy Instructions

  • First decide if you will be using meat, veggies, or both! If using meat, make sure it is precooked. This is a great use for leftover ham during the holidays!
  • Line the bottom of your casserole dish with hashbrown patties. If you can’t find them in the freezer section, you can substitute tator tots of the bottom layer!
  • Next cover the hashbrowns with your meat, veggies and cheese!
  • You’ll want to mix up the eggs with the remaining ingredients and pour this over your meat and cheese. Cover with foil and place in the refrigerator overnight.
  • In the morning, pop the covered dish into the oven. It’s a hearty meal that takes nearly two hours to bake, so plan accordingly! If you’d like to eat this for a “breakfast for dinner” make it in the morning, refrigerate all day, then put it in the oven for dinner. ENJOY.
Ingredients needed for egg casserole, including sausage, cheese, eggs, milk, and seasoning.

Substitution ideas

Whether you keep this meaty, or want a vegetarian dish, there are so many options available.

MEAT: choose one or more of the following. Ham, bacon, chorizo, breakfast sausage, turkey bacon.

VEGETABLES: spinach, tomatoes, mushroom, green pepper, kale, onion are all delicious options.

POTATO: this recipe uses frozen hash brown patties. But you can also use shredded hashbrowns, cubed hash browns, and even tater tots!

More Brunch Recipes

  1. Get your day started with this hearty Sausage and Gravy Breakfast Casserole! Best part? It can be made ahead of time!
  2. Brunch isn’t complete unless you’ve made a batch of these Perfect Instant Pot Hard Boiled Eggs. They peel so easily, and are perfect for deviled eggs, egg salad, and much more!
  3. Serve up a batch of these Greek Omelets for your guests this holiday. Perfect with a side of homemade tzatziki sauce!
Egg casserole slice on a spatula being lifted out of pan.

Tips and Tricks

Make this casserole ahead of time for easy breakfast or dinner. Assemble as written and refrigerate covered with foil for up to 24 hours.

Store leftover casserole in refrigerator and enjoy within 3 days.

Leftovers can be frozen for later and reheated in microwave. ENJOY.

More Easy Breakfast Recipes

Yield: serves 8

Egg Casserole

Prep Time 20 minutes
Cook Time 2 hours
Total Time 2 hours 20 minutes

Delicious, cheesy Egg Casserole, can be made the night before. Put in the oven in the morning and enjoy this hearty breakfast!


  • 8 frozen toaster hash browns
  • 2 cup shredded cheddar cheese
  • 1 ½ lb cooked, diced meat (ham, bacon, sausage)
  • 6 eggs, beaten
  • 2 ¼ cup milk
  • 1 can cream of celery soup
  • 1 tsp yellow mustard
  • 1 tsp kosher salt
  • ¼ tsp black pepper
  • 8 drops Tabasco sauce
  • may substitute in place of meat: spinach, tomato, mushroom, onion, green peppers, broccoli


  1. Place frozen hash browns in bottom of 13x9 casserole dish. Cover with meat (or veggies) and cheese. Beat milk and eggs, add soup and spices.
  2. Pour over meat/cheese and top with additional cheese if desired.
  3. Cover and refrigerate overnight (or if making for dinner, refrigerate during the day to be cooked later).
  4. Bake covered 1 hour at 325 degrees, uncover and bake an additional 45-60 minutes.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 600Total Fat: 36gSaturated Fat: 13gTrans Fat: 0gUnsaturated Fat: 20gCholesterol: 254mgSodium: 1219mgCarbohydrates: 27gFiber: 3gSugar: 3gProtein: 42g

*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram

*Recipe previously published April 14, 2011*

Delicious, cheesy Egg Casserole, can be made the night before. Put in the oven in the morning and enjoy this hearty, breakfast bake!

About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

Affiliate Disclosure:**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

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Posted on June 15, 2020

Comments & Reviews

  1. I really love to eat cheddar cheese and toaster hash browns. So delicious and healthy recipe. Will make it soon.

  2. Thanks for entering my sausage link-along. Please return and vote for your favorite recipe. I will feature the winner with a separate post that includes me preparing the winner’s recipe.

  3. Love brunch food as well! That’s my favorite meal : ) I know my husband would love this (and me too!) Thanks!

  4. This sounds like it would be delicius with the spinach and sausage. We love breakfast casseroles too (I also just posted one :)) Thanks for sharing yor recipe.

  5. I have to be honest, I have never seen cream of celery soup in a egg casserole before – it intrigues me. Looks delicious too!

    1. Hi. This looks so yummy. All i have left is Cheddar Cheese soup. Do you think that would work? Thanks!!

  6. @ Carla- let me know if they like it!
    @ Miz Helen- thanks for hosting and stopping by!
    @ Kate- It’s perfect for Easter brunch, enjoy!

  7. Hi Aimee,
    Your Egg Casserole is a great dish for company and just looks delicious. Thank you so much for sharing with Full Plate Thursday and hope to see you next week! I am your newest follower!

  8. I plan on trying this very soon. My husband has a small group of men over for breakfast the last Saturday of the month and I will try it out on them. I can’t thank you enough! :


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