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Cheesy Breakfast Potato Casserole takes minutes to make and is a perfect make-ahead meal! It will become a breakfast favorite.

This Cheesy Breakfast Potato Casserole is hearty and delicious. It’s a filling breakfast and will surely be a crowd-pleaser! Try pairing this with a Strawberry Banana Smoothie or a glass of  Orange Juice Smoothie.

Cheesy Breakfast Potato Casserole baked in a dish and topped with green onions.

Cheesy Potato Casserole

We LOVE breakfast at our house. I’m not joking when I say that we have breakfast for dinner at least ONCE a week.

We love Pancakes and Waffles, Cinnamon Rolls, Smoothies, and especially Breakfast Casseroles, like today’s Cheesy Potato Casserole.

Casseroles are so great, mostly because they’re quick, simple, and delicious. Plus, they are easy to change up based on the ingredients you love and crave most.

This particular Cheesy Breakfast Potato Casserole has potatoes, eggs, sausage, and cheese – some of our favorite breakfast or brunch ingredients. The best part of all was that it took just minutes to make!

How to Make It

The ingredients for this Egg and Potato Casserole are simple – eggs, milk, sausage, hash browns, cheese, salt, and pepper.

PREP. Preheat the oven to 350°F. Spray a 9-x-13-inch baking dish with cooking spray. Divide the cheese and set ½ cup aside.

COMBINE. In a large bowl, mix eggs, milk, hash browns, sausage, salt, pepper, and 1 cup of cheese until combined. Pour into the prepared baking dish.

BAKE. Bake for 32–35 minutes. Remove from the oven and add the remaining ½ cup cheese over the top. Place it back in the oven and bake for an additional 3–5 minutes.

Recipe Variations

There are so many easy ways to change up this recipe. Here are some try:

  • Mexican: add chopped peppers and use Mexican blend cheese instead of cheddar.
  • Meat lovers: add cooked bacon along with the sausage.
  • Low-fat version: omit the meat and add a cup of chopped spinach and other vegetables such as zucchini, red bell pepper, or broccoli florets.
  • Garnish: garnish with fresh herbs and spices like parsley and green onions. Serve with a dollop of sour cream.
Cheesy breakfast potato casserole ready for baking.

Recipe Tips

Shredded hash browns. Cook times should be the same. Just like the cubed hash browns, thaw shredded hash browns for best results. If not thawed, it may need an additional few minutes to cook.

Use fresh potatoes. Peel and dice 20 oz of fresh potatoes, like russets, to use in this recipe. Don’t soak the potatoes because you want the starch from the potatoes to help thicken the Breakfast Potato Casserole as it bakes. 

Sausage. Brown your own Italian Sausage in a large skillet over medium heat. Drain excess fat before using it in the recipe. 

Cheese. Substitute the cheddar cheese, or combine it, with other favorites like Swiss cheese, pepper jack cheese, or Colby Cheese. 

Fresh baked cheesy breakfast potato casserole topped with green onions.

Making Ahead and Storing

STORE leftovers in an airtight container in the refrigerator for 3-4 days.

FREEZE leftovers in the freezer for later. Reheat in the microwave or oven if you have a large amount. 

Make ahead of time. Make this Cheesy Potato Breakfast Casserole up to 24 hours in advance – perfect for Christmas morning!

  • Cover and keep it in the fridge until ready to make. A few minutes may need to be added to the cooking time.
  • Freeze it, uncooked, for up to 2 months. Wrap the pan tightly with plastic wrap and again with foil. Thaw in the fridge before baking.
Close up of cheesy breakfast potato casserole topped with green onions.

Recipe FAQ

Can I use fresh potatoes instead of frozen hashbrowns?

You definitely can! Peel and dice 20 oz of fresh russet potatoes to use instead of the frozen kind. Don’t soak them, because the starch from the potatoes will thicken the casserole as it bakes. 

Do I have to use precooked sausage?

You can use the precooked sausage crumbles you find in the freezer section of the grocery store, or you can use uncooked sausage. Simply brown the sausage in a skillet and drain excess fat before incorporating into the breakfast casserole.

Can I make this breakfast potato casserole ahead of time?

Of course! One of the best features of this casserole is that it can be made up to 24 hours before baking. See the details above in the section titled, “Making Ahead and Storing”.

For more yummy Breakfast recipes:

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4.99 from 268 votes

Cheesy Breakfast Potato Casserole Recipe

By: Lil’ Luna
Cheesy Breakfast Potato Casserole takes minutes to make and is a perfect make-ahead meal! It will become a breakfast favorite.
Servings: 12
Prep: 5 minutes
Cook: 35 minutes
Total: 40 minutes

Ingredients 

  • 8 large eggs
  • ½ cup milk
  • 1 20 oz bag ,frozen diced hash browns thawed
  • 9 – 10 ounces precooked Italian sausage
  • salt and pepper, to taste
  • 1 ½ cups shredded mild cheddar cheese, divided
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Instructions 

  • Preheat the oven to 350°F. Grease a 9-x-13-inch baking dish.
  • In a large bowl, mix eggs, milk, hash browns, sausage, salt, pepper, and 1 cup of cheese until combined. Pour into the prepared baking dish.
  • Bake for 32–35 minutes. Remove from the oven and add the remaining ½ cup cheese over the top. Place back in the oven and bake for an additional 3–5 minutes.

Video

Notes

Make Ahead. Make this breakfast potato casserole through Step 2 up to 24 hours in advance. Just cover and keep in the refrigerator until ready to bake. Uncover and bake; you may need to add a few additional minutes to the baking time.
Variations:
  • Mexican: Add chopped bell peppers and use Mexican blend cheese instead of cheddar.
  • Meat Lovers’: Add cooked bacon along with the sausage.
  • Low-Fat: Omit the meat and add a cup of chopped spinach and other vegetables.

Nutrition

Calories: 227kcal, Carbohydrates: 9g, Protein: 12g, Fat: 15g, Saturated Fat: 7g, Cholesterol: 143mg, Sodium: 314mg, Potassium: 258mg, Vitamin A: 340IU, Vitamin C: 4.3mg, Calcium: 156mg, Iron: 1.3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Breakfast
Cuisine: American
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About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

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Recipe Rating




83 Comments

  1. mARTHA says:

    5 stars
    tHIS WAS AN EASY AND DELICIOUS CASSEROLE. tHE ONLY THING i CHANGED WAS i ADDED SOME CHOPPED GREEN ONIONS. iT WAS AMAZING. tHANK YOU FOR THE RECIPE.

    1. Kristyn Merkley says:

      Perfect!! You are so welcome! Thank you for trying it & for letting me know!

      1. Melissa says:

        Can you dice up whole Potatoes and USe THose? Should YOu cook the whole potaties FIRSTif YOu go That route to SOften THEM or will they COOk in the Casserole ANd SOften THat way…

      2. Jill says:

        I am wondering the same thing. I’m bummed this is the only comment without a reply from her.

      3. Kristyn Merkley says:

        I have not tried using cubed potatoes, so I couldn’t say for sure if you would add them raw or cooked. I am thinking if they are small, they would cook in the casserole.

      4. Audrey says:

        5 stars
        Made this tonight, and I used diced raw potato. It turned out great. Make sure your dices are small and cook 5 to 10 extra minutes.

      5. Kristyn Merkley says:

        Perfect!! Thank you for sharing that 🙂

  2. Melissa says:

    5 stars
    I made it this morning for my son & hubby. I made some changes, only to be more appealing to my son. I used tater tots, instead of hashbrowns & diced ham instead of sausage. It turned out incredible & they loved it. This is a great recipe that can totally be altered to fit your tastes. Hubby asked me to make one with bacon, sausage, peppers & onions, in the future. We also added a dollop of sour cream on top for some extra yum!

    1. Kristyn Merkley says:

      Yes, it’s great for adding what you like or taking out what you don’t. Thank you for sharing what you did!!

  3. Rey says:

    For the precooked Italian sausage, is it sold precooked in the freezer section or do I buy the Italian sausage in the meat section and cook before using?

    1. Kristyn Merkley says:

      It is sold precooked or you can cook some up. Whichever is easier for you 🙂 Enjoy!!

  4. Julie Hansen says:

    5 stars
    I’m not a great cook, but this one turned out great when I took it to Bible study!

    1. Kristyn Merkley says:

      I love hearing that! I hope it was a hit! Thank you!

  5. Hanale says:

    Question, can prepare this recipe the niGht Before i bake it?

    1. Kristyn Merkley says:

      You sure could 🙂 Just cover well. Enjoy!!

  6. Jade says:

    I was just wondering what you mean by hash browns cubed and thawed? do you have a certain brand you use for that? sorry, just barely trying to learn how to cook. Thank you!

    1. Kristyn Merkley says:

      Any brand would work. I use Ore-Ida a lot, the southern style cubed potatoes. And, they are in the frozen section 🙂

  7. Sharon says:

    5 stars
    Easy and the ENTIRE famil loved it!

    1. Kristyn Merkley says:

      Yay!! Happy they did 🙂 Thank you for trying it!

    2. Kim Massie says:

      I will be making this for a homeless shelter to serve 75 people. Im going to ×6 the recipe and cook it in 2 separate large baking dishes, so recipe ×3 in each fish. How much time do you think it will take to cook each pan? Any other tips?

      1. Kristyn Merkley says:

        I would probably double it & put in an 11×17, so have 3 pans. It might need close to 40-45 min. I would start checking at 35 min, then add a couple min at a time.

  8. Kara Cook says:

    5 stars
    This is a favorite at our house. It’s so easy and so tasty! We actually enjoy it so much that we sometimes have it for dinner!

    1. Cory Blane says:

      Need to fix your cheese measurements. Only 7oz in the whole recipe? Confused.

      1. Lil'Luna Team says:

        Yes, you’ll use about 1 cup of cheese in the casserole and the rest (about 1 cup) will go on the top. If you like more or less, you can certainly adjust the amount of cheese used.