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    Home » Breakfast

    Cheesy Egg O'Brien Casserole

    Published: Oct 9, 2019 · Modified: Oct 6, 2021 by Kim This post may contain affiliate links.

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    Cheesy Egg O'Brien Casserole a great breakfast casserole for guests or for your family. Only a handful of ingredients and has the perfect cheesy goodness in every bite. 

    Piece of cheesy egg o'brien casserole with a fork on a white plate

    Have you ever been invited to a brunch or gathering and needed to bring a breakfast dish? I have and when they would tell me "breakfast casserole", I really didn't have a good one to pull from.

    So, I wanted to change that. This Cheesy Egg O'Brien Casserole would be great to take to such a gathering. It would also be great for a special breakfast at your house.

    This breakfast recipe only has a few ingredients and it is so simple to make.

    What are the ingredients in this potato egg casserole?

    The ingredients are very simple. I bought O'Brien hashbrowns at Kroger while on sale. The hashbrowns are chunks, not shredded potatoes and it comes with chopped peppers and onions. You can certainly use regular hashbrowns and just chop your own veggies.

    I went the simpler way.

    This casserole also has eggs and heavy cream in it. Pretty simple, right?

    Can I make this cheesy egg o'brien casserole on the go?

    I know that most of my recipes are on the go recipes, but as simple as these ingredients are, it isn't in your best interest not to plan ahead with this casserole. It takes about 1 hour to cook all the way through.

    The eggs take a little time to firm up and you want the potatoes to be soft.

    Bag of O'Brien potatoes

    See also: Cheesy Potato Egg Muffins

    hashbrowns and cheese in a large glass bowl

    Add the O'Brien potatoes to a large bowl and add 1 cup of cheese on top. Set aside.

    Milk and eggs in a silver bowl

    Pour milk into a small bowl and whisk in eggs. Pour over top of potatoes in large bowl. Pour into a greased 8 or 9 inch square baking dish.

    Cheesy Egg O'Brien Casserole in a square cooking dish

    Piece of cheesy egg o'brien casserole with a fork on a white plate

    Cheesy Egg O'Brien Cassrole

    Kim Strawn
    Easy and delicious breakfast or brunch casserole. Made with O'Brien hashbrown potatoes.
    5 from 2 votes
    Print Recipe Pin Recipe
    Prep Time 10 mins
    Cook Time 1 hr
    Total Time 1 hr 10 mins
    Course Breakfast
    Cuisine American
    Servings 9 servings
    Calories 243 kcal

    Ingredients
      

    • 5 cups O'Brien Hashbrown Potatoes frozen
    • 5 eggs
    • ⅔ cup heavy whipping cream you can use regular milk
    • 1 cup cheddar cheese
    • 2 teaspoon salt
    • 1 teaspoon pepper

    Instructions
     

    • Add potatoes and cheese to a large bowl, set aside
    • Pour heavy cream in small bowl and whisk in eggs
    • Pour over potatoes and cheese and mix well
    • Pour mixture into a greased 8 or 9 inch square pan
    • Bake at 400* for 1 hour until eggs are firm
    • Remove from oven and let set for 10 minutes. Serve

    Nutrition

    Calories: 243kcalCarbohydrates: 22gProtein: 9gFat: 14gSaturated Fat: 8gCholesterol: 128mgSodium: 662mgPotassium: 392mgFiber: 2gSugar: 1gVitamin A: 517IUVitamin C: 10mgCalcium: 127mgIron: 2mg
    Keyword breakfast casserole, hashbrown casserole
    Tried this recipe?Let us know how it was!

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    1. Alexandra Wolfson

      October 03, 2022 at 6:27 pm

      How would you go about doubling this? Reduce the temp to 375 and increase cooking time to an hour and a half maybe?

      Reply
    2. Rebecca Sorrell

      June 19, 2022 at 4:40 pm

      5 stars
      Made this for Father's Day Brunch. Great flavor profile. Added chopped ham, mushrooms and spinach to the mix. Prepared the casserole the night before and baked the next morning. By adding the additional ingredients I should have added 1 or 2 additional eggs. Definitely will add this to my breakfast rotation

      Reply
      • Kim

        June 20, 2022 at 2:34 pm

        I'm so glad to hear it was a hit!

        Reply
    3. Debi

      October 11, 2019 at 7:22 am

      Are the potatoes thawed or frozen?

      Reply
      • Kim

        October 11, 2019 at 1:12 pm

        They can be either. I simply pulled them from the freezer and put them in the casserole.

        Reply

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    Hey There, I'm Kim! A taco fan, cookie eater and beach goer. I'm also a mom to 4 growing kids so I understand busy! Here you will find recipes that are quick, simple and can get on the table fast. We are so glad to have you here. Click here to read more about me.

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