Easy Keto Breakfast Casserole

This keto breakfast casserole is top notch and is a delicious recipe you and your entire family will love. You make one egg mixture and choose your meats, cheeses, veggies, and spices. It’s super versatile and can fit everyone’s taste buds.

I’ve told you all many times casseroles are probably my favorite thing to make and breakfast casseroles fall right into that same category. Why are casseroles my favorite? Why not really?? You literally can throw anything into a casserole and it tastes good. 

When it comes to making your low carb breakfast casserole, the base for it is eggs, then you can get as fancy as you want. A lot of traditional egg casseroles have bread or potatoes in them, but let me tell you, you don’t miss them at all! 

If you have tried our Breakfast Egg White Cups then I think you’re really going to like this Sausage egg and cheese casserole without bread!

What is a Breakfast Casserole?

A breakfast casserole is pretty much exactly how it sounds…it’s an egg mixture mixed with different meats, veggies, and cheeses then baked all together in a casserole dish. It’s very similar to a crustless quiche.

Can You Eat Sausage and Cheese on a Keto Diet?

Sausage and cheese are common ingredients that you will find on a keto diet. They are both higher in protein and fat, but low in carbs making them great additions to an egg casserole without bread.

Is Breakfast Casserole Keto-friendly?

Making your morning breakfast casserole keto-friendly is all about the ingredients you choose to use. So basically if you pick all the right ingredients, our keto breakfast casserole is perfect for a low carb diet. 

The recipe for this breakfast casserole without bread is full of eggs, heavy cream, veggies, sausage, and cheese…ultimately making it delicious.

How Many Carbs are in a Keto Breakfast Casserole?

Let’s talk about carbs. How many carbs are there exactly in this low carb breakfast casserole? There are 6 servings, and each serving is 2.1 NET CARBS. 

Just in case you are new to living a low carb lifestyle 2.1 net carbs is great!!

What Ingredients are in Low Carb Breakfast Casserole?

• Eggs – 8 large eggs. 
• Heavy Cream – We use only a little bit to help the eggs get fluffy. 
• Breakfast Sausage – Ground breakfast sausage is what most people like, but Italian sausage works great too. 
• Cheddar Cheese – I chose to use shredded cheddar cheese, but you can use another kind if you prefer. 
• Baby Spinach – Be sure to use fresh spinach, not frozen. 
• Onion – If you are on keto then stick to only a ¼ cup, otherwise you can up the amount to ½-¾ cup depending on how much you like onions. 
• Spices – Salt, pepper, and chopped garlic.

Best Sausage for Breakfast Casserole

Any ground sausage that is labeled as “breakfast sausage” would be the most classic choice to use in this recipe. 

However, there is absolutely nothing wrong with using Italian sausage instead, in fact, I’ve done that several times because that’s what I had on hand and I loved the way it came out just as much.

Different Variations & Substitutions

Making a keto egg casserole is not only easy but you can put all different kinds of meat, cheese, and veggies in it which makes it a super versatile and easy keto egg bake. 

Here are some of our favorite variations:

Meat Options

• Sausage 
• Bacon 
• Ham 
• Turkey Sausage 
• Turkey Bacon 
• Steak 
• Canadian Bacon

Cheese Options

• Cheddar
• Provolone 
• Mozzarella 
• American 
• Swiss
• Monterey Jack 
• Gruyere 
• Feta 
• Goat Cheese 

Veggie Options

• Fresh Spinach 
• Broccoli 
• Cauliflower 
• Tomatoes – Drain all the liquid before adding
• Zucchini – Drain all the liquid before adding 
• Bell Peppers

Can I Make a Dairy-Free Version?

Absolutely you can make your keto breakfast bake dairy-free! This can be done in 2 simple steps: 

1. Replace the heavy cream with almond milk.
2. Omit the cheddar cheese, or replace it with vegan cheese.

How to Make Keto Breakfast Casserole

Let’s start making our sausage egg and cheese casserole without bread!

Step 1: Preheat the oven to 350 degrees. 

Step 2: In a medium bowl whisk the eggs, heavy cream, salt, and pepper together.

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Step 3: Add the ground sausage, onions, and garlic to a cast iron pan or frying pan. Cook on medium heat.

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Step 4: Once the sausage is fully cooked, add the spinach, and cook for 1-2 minutes.

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Step 5: If there is any liquid in the pan, drain it. 

Step 6: Add the sausage and cheddar cheese to the eggs. Whisk together.

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Step 7: Spray an 8×8 or 9×9 baking dish with cooking spray.

Step 8: Pour the egg mixture into the pan.

Step 9: Bake for 25 minutes, or until cooked through.

How Long Does it Take to Cook?

In my oven, a breakfast casserole takes exactly 25 minutes to be cooked to perfection. However, keep in mind ovens are different so I recommend checking it at 20 minutes.

FAQs & Best Tips

• Using heavy whipping cream will give you the fluffiest eggs. 
• Dairy-Free Option: Replace the heavy cream with any nut milk, and either omit the cheese or replace with vegan cheese. 
• Always pre-cook your meat and veggies before adding them into the egg mixture. 
• Breakfast sausage or Italian sausage work perfectly. 
• If you like spice add in some crushed red pepper flakes or any type of hot pepper. 
• Choose your ingredients based on your taste buds. 
• Lightly grease the baking dish before pouring the egg mixture in.

Can I Make Egg Muffins with this Recipe?

Actually yes you can make egg muffins with this keto breakfast casserole recipe. 

1. Prepare the filling the same way as directed. 
2. Spray a muffin pan with non-stick cooking spray. 
3. Pour the mixture into the muffin pan.
4. Bake for about 10-15 minutes or until fully cooked.

What to Serve with Keto Breakfast Casserole?

I do love to make this low carb breakfast bake and serve it for brunch. A few other great low carb recipes I typically serve with it are keto blueberry muffins, keto banana nut muffins, coconut flour pancakes, and of course oven-baked bacon.

Also, you can’t get your day off to a good start without a cup of Keto Coffee. It always helps me to reach my macros easier and it tastes great. You can always add some low carb coffee creamer to add some more flavor.

Make-Ahead Breakfast Casserole Options

You can assemble your sausage egg and cheese casserole without bread and store it in the fridge before baking for up to 48 hours. 

You also can assemble the low carb egg casserole, then freeze it to bake later. See below for freezing instructions.

How to Store

Once the egg and sausage casserole has been baked and fully cooled, transfer the leftovers to an airtight container and place in the fridge. It will stay fresh for up to 3-5 days.

How to Reheat

Microwave: Place the low carb egg casserole on a microwave-safe plate and microwave for 1-2 minutes or until it’s hot. 

Oven: Heat oven to 325 degrees, and place the leftover keto egg bake in the oven for 5-10 minutes or until it’s hot.

Can You Freeze Low Carb Breakfast Casserole?

Sure thing! Not only is this a great make-ahead keto breakfast bake but it freezes great as well. When it comes to freezing you have 2 options: 

Before Baking: Assemble the casserole as per the recipe card, but DO NOT BAKE. Pour the egg mixture in a disposable baking dish, wrap it tightly with plastic wrap and then foil. Take out the night before and let thaw in the fridge overnight. Bake at 325 degrees for 25 minutes. 

After Baking: Bake the keto egg casserole according to the recipe card. Let fully cool down to room temperature. Wrap the entire casserole in plastic wrap and foil and place in the freezer for up to 1 month. When ready to eat, thaw in the fridge overnight and reheat in the oven or microwave.

Tools to Use

• Mixing Bowls 
• Whisk 
• Cast Iron Skillet or Frying Pan 
• 8×8 Baking Dish

Best Pan for Breakfast Casserole

For this EXACT gluten-free breakfast casserole the best pan to use is a glass or ceramic 8×8 or 9×9 pan. You can use a large pan, but it will end up being a much thinner keto egg bake. 

If you decide to use a larger pan then what you should do is up the amount of eggs. If you use a 9×13 baking dish then use about 12 eggs instead.

Other Diets This Recipe is Good For

• Gluten-Free: We make our sausage and egg casserole without bread making it completely gluten-free. 
• Dairy-Free: I used heavy cream mixed in with the eggs, but you can replace it with almond milk instead. Also, you need to omit the cheese completely or replace it with vegan cheese. 
• Vegetarian: As you see we put sausage in this low carb breakfast bake, but you do not need to add any meat at all. Load up on the veggies! 
• Paleo: Again it’s the heavy cream that doesn’t make this quite paleo, so use almond milk instead. 

Other Low Carb Breakfast Recipes

Looking for some other low carb breakfast ideas? Check out some of these: 

• Breakfast Egg White Cups 
• Keto Corned Beef Hash 
• Keto Smoothies 
• Low Carb Donuts 
• Almond Flour Waffles 
• Almond Flour Pancakes 
• Crunchy Keto Granola
• Keto Cinnamon Rolls 

They all are Keto-friendly and low carb, and will be a hit with your family and friends!

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