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    Home » Recipes » Gluten-Free Breakfast Ideas

    Published: Feb 23, 2021 · Modified: May 29, 2021 by Jen Wooster

    Keto Breakfast Casserole

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    slice of breakfast casserole on a plate with fruit

    Don't be fooled by the name, this keto breakfast casserole isn't just for those who eat a keto diet. At just 4 grams of net carbs, this egg bake is creamy and delicious.

    It is deceptively simple to make. Unlike most low carb breakfast dishes that are made for a crowd, this one cooks in well under an hour. Making it perfect for holidays and family gatherings.

    close up shot of breakfast casserole

    Please read the entire post for tips and tricks to ensure a perfect recipe every time. And don't forget to tag @peelwithzeal on Instagram so we can admire your creation!

    This post may include affiliate links. Please read my disclosure policy.

    Jump to:
    • 🧾Ingredients and Substitutions
    • ⏲️Instructions
    • 🍳Tips and Tricks
    • 🥗More Keto Friendly Breakfast Recipes
    • 📖 Recipe
    • ⭐Reviews

    While this recipe is technically keto, I love it because it isn't keto specific. Keeping the ingredients simple makes this breakfast casserole perfect for holidays, an easy weeknight dinner, or just a casual Sunday brunch. And while it isn't loaded up with potatoes or bacon, like most breakfast dishes, it is still big on flavor.

    🧾Ingredients and Substitutions

    This easy low carb egg bake is dependent on the fats from the ingredients for a perfect texture. I do not recommend substituting non-dairy or low-fat ingredients. To make this recipe you will need:

    • One dozen eggs
    • Shredded Swiss cheese or gruyere cheese, better yet do a 50/50 mix
    • Unsalted butter, about half a stick
    • Whole milk
    • Dry white wine (for real, and don't skip it)
    • Spices- salt, black pepper, and a dash of dry mustard
    • Chives to garnish
    breakfast casserole ingredeitns on a counter

    You may be tempted to add meats and veggies to this keto breakfast casserole. I get it, but I do truly prefer the simple version. It is creamy and rich, like souffle.

    But if you must, here are the additions we recommend adding or avoiding.

    Finely diced onions, peppers, ham, and bacon make good additions. Fully cook your additions before adding to the breakfast casserole.

    Avoid additions that are chunky or high in water content like sausage, broccoli, or tomatoes. They weigh down the casserole and prevent the eggs from achieving their perfect creamy consistency.

    ⏲️Instructions

    While your oven is preheating prepare the casserole dish by greasing it with butter. The key to this breakfast egg bake is to layer the ingredients so it puffs up just the right amount.

    The first layer is the cheese. Spread the swiss cheese in the bottom of the casserole dish. Next, you will cut the stick of butter into small chunks. Spread out over the cheese. Whisk together the milk and wine. Pour half the mixture over the cheese and set aside.

    assembling the keto casserole

    Beat together the eggs with salt, pepper, and dry mustard. The eggs should be fully combined and slightly frothy. You can use a whisk or a blender for this step. Pour the remaining milk/wine mixture over eggs.

    Bake until the eggs are slightly puffed and just set, approximately 35 to 40 minutes. Beginning checking at 30 minutes, then every few minutes until the center is just slightly jiggly. Rest for 5 minutes before cutting into squares, garnish with chives.

    Fully baked casserole

    🍳Tips and Tricks

    • Make sure your oven is fully preheated before placing the casserole in the oven.
    • When in doubt, go with a larger pan versus a smaller one. This casserole is meant to be a more elegant thinner breakfast dish. Not an overstuffed casserole (which we love, just not what this recipe was meant to be).
    • Resist the urge to pre-assemble the casserole. To save time in the morning I shred my cheese and store tightly wrapped in the fridge. I crack the eggs into a mason jar and store them in the fridge. In the morning I add the spices. Tightly screw the cap on and give it a good shake to combine.
    • The recipe calls for swiss cheese but my favorite is a 50/50 mix of swiss and gruyere.

    🌡️How to Store Leftover Keto Breakfast Casserole

    There are two methods for storing leftovers. First is allow the breakfast casserole to cool in the pan. Cover tightly and store in the fridge.

    My preferred method though is to allow the casserole to completely cool. Then cut into squares. Store the squares in a Tupperware-style container with a piece of wax paper separating the stacked squares.

    The casserole will keep in the fridge for 3 to 5 days. To reheat pull out a square and microwave on medium power for 4 minutes.

    table set for breakfast with plates of casserole

    🥗More Keto Friendly Breakfast Recipes

    If you enjoyed this egg bake recipe check out some of our other low-carb carb breakfast recipes. And we recommend this list for more truly keto breakfast ideas.

    Strawberry Tahini Shake- Dairy & Sugar Free
    Strawberry banana milkshake with tahini. Gluten, diary and sugar free!
    Check out this recipe
    strawberry tahini smoothie recipe in a glass
    Blueberry Avocado Smoothie
    A quick and healthy breakfast or snack, loaded with nutritious ingredients like blueberries, bnanas, and avocados.
    Check out this recipe
    blueberry avocado smoothie topped with coconut
    Grain- Free Overnight "Oats"
    DIY instant overnight noatmeal recipe, just add water!
    Check out this recipe
    keto grain free oatmeal mix

    If you enjoyed this recipe, please leave us a rating or a comment. It helps other wonderful people connect with our food.

    📖 Recipe

    slice of ketp breakfast casserole on spatula

    Keto Breakfast Casserole

    Recipe Created By: Jen Wooster
    This low carb baked egg casserole perfect for breakfast or brunch. Serve with sliced fruit or a seasonal salad for an easy meal.
    5 from 13 votes
    Print Recipe Pin Recipe
    Prep Time 10 mins
    Cook Time 35 mins
    Total Time 45 mins
    Course Breakfast, Brunch
    Cuisine American
    Servings 6
    Calories 359 kcal

    Equipment

    • 9x13 casserole dish

    Ingredients
      

    • 2 cups shredded swiss cheese or gruyere
    • 4 tablespoon unsalted butter plus more for greasing the dish
    • 1 cup whole milk
    • 2 tablespoon dry white wine
    • 12 eggs
    • ½ teaspoon salt
    • ¼ teaspoon black pepper
    • ¼ teaspoon ground mustard
    • fresh chives for garnish

    Instructions
     

    • Preheat the oven to 325 F degrees. A grease casserole dish with extra butter. Spread the cheese in the bottom of the casserole dish. Cut the butter into small chunks and dot over the cheese.
      swiss cheese in casserole dish
    • Combine the milk and wine. Pour half the mixture over the cheese.
      assembling the keto casserole
    • Beat together the eggs with salt, pepper, and dry mustard. The eggs should be fully combined and slightly frothy.
      eggs being whisked in metal bowl
    • Pour the remaining milk/wine mixture over eggs.
      Assembled casserole
    • Bake until the eggs are slightly puffed and just set, approximately 35 to 40 minutes. Beginning checking at 30 minutes, then every few minutes until the center is just slightly jiggly. Rest for 5 minutes before cutting into squares, garnish with chives.
      Fully baked casserole

    Video

    Notes

    1. A 9x13 or larger casserole dish is recommended for this recipe. In order to cook without getting crusty, the casserole needs to be on the thinner side. 
    2. Bake on the bottom rack to prevent the top from over-browning.
    3. Layering the ingredients is important in this casserole dish. 

    Nutrition

    Calories: 359kcal | Carbs: 5g | Protein: 22g | Fat: 27g | Fiber: 1g
    Keyword egg bake, egg casserole, gluten free egg casserole, keto egg bake
    Tried this recipe?Tag us @peelwithzeal so we can see your creation!

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    Reader Interactions

    Comments

    1. Biana says

      July 05, 2021 at 10:23 am

      5 stars
      Looks delicious! A perfect brunch dish to serve with a salad.

      Reply
      • Jen says

        July 05, 2021 at 5:14 pm

        5 stars
        Thanks so much!

        Reply
    2. Pam says

      July 05, 2021 at 10:19 am

      5 stars
      Going to have several people at the beach house next weekend and I'm making this!

      Reply
      • Jen says

        July 05, 2021 at 5:14 pm

        5 stars
        Let us know how it turns out.

        Reply
    3. Kristen says

      July 05, 2021 at 9:59 am

      5 stars
      Love this breakfast casserole! Thank you for the great recipe!

      Reply
      • Jen says

        July 05, 2021 at 5:14 pm

        5 stars
        Thank you for the review.

        Reply
    4. Mirlene says

      July 05, 2021 at 9:57 am

      5 stars
      Can a breakfast get any better than this? What a fantastic recipe to keep handy at all times.

      Reply
    5. Pam Greer says

      July 05, 2021 at 9:23 am

      5 stars
      I love how fast and easy this is and everyone loves it! My new go to breakfast casserole!

      Reply
      • Jen says

        July 05, 2021 at 5:14 pm

        5 stars
        Thanks for the review! Glad everyone enjoyed.

        Reply

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    My name is Jen and I am the recipe developer, writer, and photographer around here. Since being diagnosed with celiac disease over 10 years ago I have been slowly curating a recipe box full of gluten-free goodness. I adore vegetables, crave chocolate, and I am always up for an adventure.

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