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A healthy breakfast casserole is a delicious way to start your day…and an easy one. Seriously, half a dozen ingredients and some spices, and you have a sausage, egg and cheese casserole without bread, that will make your mouth water! I hope this low carb breakfast casserole recipe will become a staple at your house like it is in mine.
While easy keto breakfasts like a chocolate peanut butter low carb smoothie are great, sometimes it’s nice to have a hearty, satisfyingly hot meal to start the day and that is where this keto breakfast casserole comes in. When you need an easy low carb breakfast, this is your winner.
Most people might not think about making egg casserole without bread or potatoes, but you won’t even miss them when you make this healthy low carb breakfast.
Pssst…want to have an even better start to your day? Have some keto butter coffee on the side of your gluten-free egg bake!
Falling in Love with a Sausage, Egg and Cheese Casserole
Many people discovered the low carb breakfast casserole a long time ago, but they were new to me. Casseroles are, after all, a pretty American dish and I was raised in a Russian family. But it was love at first bite.
The first casserole I tried was probably tater tot hot dish at my Minnesotan friend’s house in middle school, I might not still use those ingredients in my meals any more, but my love for this all encompassing style of meal is strong.
When I started making low carb casseroles of my own years later, I quickly discovered the beauty of them. A couple of my favorites are lazy cabbage roll casserole and keto low carb pizza casserole. They are so darn versatile!
You can throw in whatever ingredients you happen to have on hand, and it usually just works.
Plus they make convenient meals to have around that can last for up to a week and are the perfect candidates for freezing. I probably don’t have to state the obvious best part: a low carb breakfast casserole, like any casserole, is the ultimate comfort food.
Basic Components of a Healthy Breakfast Casserole
There are five basic building blocks for any healthy breakfast casserole: eggs, dairy, meat, veggies, and cheese.
When you blend these delicious ingredients together, you get a low carb egg casserole that is delicious enough for Sunday brunch and simple enough for a weekday dinner.
You really can’t beat the ease and deliciousness of this healthy breakfast casserole!
Eggs are the star of the show here. They are high in both fat and protein, but low in carbs which make them the perfect foundation for this keto breakfast casserole.
But don’t fooled; this is not just a simple egg breakfast, friends. This is the ultimate low carb egg casserole, a feast for your taste buds!
Heavy whipping cream is totally keto friendly and a fantastic way to get the fluffiest eggs imaginable. Scrambling the eggs and whipping cream together makes light and airy eggs that are also rich and savory.
If your low carb breakfast casserole needs to fit paleo standards, simple use coconut cream instead.
Really, any kind of milk you like will also work fine, but heavy cream is what will make your sausage, egg and cheese casserole the lightest and fluffiest it can be.
You can get creative here. Bacon and sausage are both viable options. You could even use other meat, honestly, but these two are the best when making keto breakfast casserole.
You’ll need to pre-cook your meat, whichever meat you choose, and then add it to the low carb breakfast casserole recipe. For this particular keto breakfast casserole, you’ll use sausage (because, really, it’s kind of hard to make a sausage, egg and cheese casserole without it!).
Vegetables are 100% optional, but I’m a huge fan of including veggies whenever possible. In the original low carb breakfast casserole recipe, I left them out, but now I do it both ways. Veggies not only add a great flavor, but they make this healthy breakfast casserole even healthier.
You will need to pre-cook them first, but how you do so is up to you. You can steam, pan fry, or roast. Just make sure you get them cooked and the moisture out, so that you end up with the right texture in your low carb breakfast casserole.
Personally, I think broccoli and cauliflower are the best options for a healthy breakfast casserole. They are commonly on hand and totally delicious. You can even use your leftover roasted broccoli and cauliflower here.
If you use a watery vegetable like zucchini or tomatoes, try to cook them in a way that makes the moisture evaporate before adding them in. For zucchini, you can drain them over the sink first, similar to how I do it when making a cheesy zucchini casserole.
Again, get creative and choose whichever cheese suits your fancy (or whichever one you already have in your fridge). This sausage, egg and cheese casserole without bread would be wholesome and yummy with any cheese, although this recipe calls for cheddar (because it’s what I usually stock… and it’s good!).
Seriously, though, this low carb breakfast casserole would be good with mozzarella, American, Swiss, Monterey jack or any other cheese you’ve got on hand. You name it!
How To Make a Keto Casserole
To start out, you’ll sauté the garlic in a skillet. Once it’s fragrant, go ahead and add whichever meat you’re cooking up (like I said, I’m a big fan of sausage here, but any meat will work for a low carb egg casserole).
If you’re adding vegetables, go ahead and prep them. You want them cooked, but still a little crisp so they are just right to add to your healthy breakfast casserole. I prefer to pan fry them for extra flavor prior to adding to the casserole, but steaming or blanching works fine, too.
Another great option is to roast the veggies. Low carb breakfast casserole is a delicious way to use up leftover roasted vegetables! Or if you don’t have any roasted, save time by roasting a huge batch, reserving half for side dishes and half for the healthy breakfast casserole.
After you whip up your eggs and spices, you’ll assemble your ingredients into the perfect keto breakfast casserole!
I like this 8×8 inch glass casserole dish, which is awesome because it even comes with a lid! But, you can also use a 9×9 inch one. Feel free to line with foil for easy cleanup, but with a glass dish I don’t find it necessary.
Then, all you have to do is patiently wait for your mouthwateringly delicious sausage, egg and cheese casserole to finish cooking so you can dig in.
Wasn’t that easy? So easy, in fact, that you can make this up at at any time to have on hand for busy mornings or even a quick weeknight meal.
Low Carb Breakfast Casserole – Make Ahead
There are probably a bazillion and one options for breakfast casserole recipes, but in my mind the classic is a low carb egg casserole made with sausage and cheese. From there you can throw in whatever veggies you like (or leave them out altogether for a no carb breakfast casserole).
Whether you choose to add them in or not, the basic recipe for keto breakfast casserole stays the same. And either way, it’s a healthy, low carb, and gluten-free staple to have around in the fridge or freezer. In this post I have some pictures with broccoli and some without any veggies.
If you want to make this low carb breakfast casserole just 1-3 days ahead of time, simply follow all the steps except the baking at the end. You can cover it and store it in the fridge. Then, take it out and let it come to room temperature before baking.
It’s extremely convenient as a quick meal to have on hand for busy days or just because. My toddler enjoys it, so I like to keep a healthy breakfast casserole on hand for her. It only takes a minute to heat up, lasts all week, and best of all, she loves it. Coconut flour pancakes are her other favorite – yum!
If you’re looking for another easy meal prep idea for eggs or low breakfast ideas, try busy morning breakfast eggs. They’re still low carb, but also vegetarian.
Aside from its everyday use, this low carb breakfast casserole makes an equally wonderful as a holiday brunch staple. I hope you’ll add it to your table in the coming weeks!
How To Freeze Keto Breakfast Casserole
It’s super easy to turn keto breakfast casserole into a freezer meal. You can freeze it for up to 3 months.
You can either bake it and then freeze it, or just assemble and freeze without baking. Here’s how to freeze breakfast casserole…
How To Freeze Low Carb Breakfast Casserole Before Baking
To freeze the keto breakfast casserole before baking, simply follow all the instructions on the recipe card except the last step. Cover the casserole with plastic wrap, then foil on top of that, and place it in the freezer.
When you are ready to bake your sausage, egg and cheese casserole, move it to the fridge and let it thaw overnight. On the day of, let it sit out for about half an hour to come to room temperature, then bake as directed on the recipe card.
How To Freeze Keto Breakfast Casserole After Baking
You can also freeze low carb breakfast casserole after baking. This is a great option for leftovers, and you can do either the whole thing or smaller pieces as individual meals.
First, follow all the steps on the recipe card to bake the keto breakfast casserole. Take extra care to ensure the eggs are fully cooked, because the texture of semi-raw eggs will be a disaster after freezing.
Place the low carb breakfast casserole on a cooling rack and let it cool completely to room temperature. After that, cover it with plastic followed by foil, and place in the freezer. If you want individual pieces, cut those first and wrap them separately.
To thaw your healthy breakfast casserole, place it in the fridge overnight. For best results, unwrap it after the first couple hours, cover lightly, and then let it finish thawing in the fridge. This lets the condensation evaporate so that it doesn’t get soggy.
Once the sausage, egg and cheese casserole is thawed, you can reheat in the microwave or oven. I highly recommend the oven to get the best texture and avoid a watery result.
More Keto Breakfast Recipes
- Low Carb Turkey Sausage Breakfast Casserole
- Keto Mexican Breakfast Casserole
- Easy Huevos Rancheros – Just use cauliflower instead of potatoes for a low carb version.
- The Best Keto Pancakes
- Low Carb Almond Flour Waffles
Tools To Make Keto Breakfast Casserole:
Click the links below to see the items used to make this recipe.
- Skillet – This skillet set includes the perfect sized skillet for browning your breakfast sausage. I use these all the time.
- Set of Bowls – These bowls are my favorite ones to use. I love that you get so many different sizes in this set. It includes a large bowl for using in this recipe.
- Casserole Dish – This classic glass casserole dish set gives you two sizes to choose from.
Keto Low Carb Breakfast Casserole with Sausage and Cheese:
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Reader Favorite Recipes
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Healthy Keto Low Carb Breakfast Casserole Recipe with Sausage and Cheese - Gluten Free
A gluten-free low carb breakfast casserole recipe with sausage and cheese - just 6 ingredients! This keto sausage, egg and cheese casserole without bread is easy to customize with vegetables, too.
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Click on the times in the instructions below to start a kitchen timer while you cook.
- In a greased skillet over medium-high heat, cook the minced garlic for about one minute, until fragrant.
Add the breakfast sausage. Cook for about 10 minutes, breaking apart with a spatula, until browned.
- Meanwhile, preheat the oven to 375 degrees F.
If using broccoli (or other veggies), blanch them in boiling water for about 5-7 minutes, until crisp tender. Then plunge into an ice bath to stop cooking, drain and pat dry.
- In a large bowl, whisk together the eggs, heavy cream, half of the cheddar cheese, parsley, sea salt, and black pepper.
Grease the bottom of a glass or ceramic 8x8 in (20x20 cm) or 9x9 in (23x23 cm) casserole dish (I use this one). Arrange the crumbled sausage evenly at the bottom of the casserole dish. (If you want to add any pre-cooked vegetables to your casserole, mix them with the sausage at this step.)
- Pour the egg mixture over the sausage. Sprinkle the remaining cheddar cheese on top.
Bake for approximately 30 minutes, until the eggs are set and cheese is melted.
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Serving size: 1/9 of the recipe, 3x3 in square if using a 9x9 pan or 2.7x2.7 in square if using an 8x8 pan
- Nutrition info does not include optional broccoli or other veggies, which will depend on what you use.
- Want to make the low carb breakfast casserole a day or two ahead, or make it into a freezer meal? Check the instructions in the post above!
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Nutrition Information Per Serving
Where does nutrition info come from? Nutrition facts are provided as a courtesy, sourced from the USDA Food Database. You can find individual ingredient carb counts we use in the Low Carb & Keto Food List. Net carb count excludes fiber, erythritol, and allulose, because these do not affect blood sugar in most people. (Learn about net carbs here.) We try to be accurate, but feel free to make your own calculations.
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