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Easy Keto Breakfast Casserole

A keto breakfast casserole is the perfect way to enjoy brunch! It's also great for meal prep since it is just as delicious reheated. This easy breakfast casserole has just six ingredients and the prep only takes about seven minutes. You can easily add ingredients to make it fancier or have a different taste profile.

Keto Breakfast Casserole

Many easy breakfast casseroles contain bread or potatoes, which of course, are not good for keto. I remember many years ago one of my favorite standbys was the Bob Evans casserole. While delicious, using bread in a breakfast casserole recipe adds a lot of unnecessary carbs.

Especially for your first meal of the day, it's important to get it started right with a good amount of protein and without the carbs that can cause an energy crash. You can easily make a breakfast casserole keto by just leaving out the bread. The casserole cooks and sets up just fine without it, and your blood sugar will thank you. Even if you're not keto or low carb, I highly recommend starting your day with at least 30 grams of protein.

Keto Breakfast Casserole

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Did you know that it takes about two grams of leucine (amino acid) to stimulate muscle protein synthesis? Rather than going super granular to determine whether the protein you're eating has the right amount of leucine, you will get that amount of leucine if you consume 30 grams of protein. For anyone 40 or older, you may want to consume slightly more protein than that at each meal since our bodies become less efficient at extracting amino acids from protein as we age.

Easy Breakfast Casserole Variations

With only six ingredients this breakfast casserole recipe couldn't be easier! You can easily change or add ingredients to make this dish even more enticing. Some ideas to make this keto breakfast casserole in several different ways:

  • Add 10 ounces of frozen drained spinach and substitute the cheddar with feta
  • Add sauteed peppers and onions to the egg mixture
  • Substitute queso fresco for the cheddar and top with salsa
  • Use gruyere cheese instead and sub in ham for sausage for a French flair
  • Add some broccoli florets to the egg mixture

If you love egg recipes, be sure to check out our Keto Quiche Florentine and Deviled Eggs!

Keto Breakfast Casserole

Prep Time: 7 minutes
Cook Time: 30 minutes
Total Time: 25 minutes
Servings: 8

Ingredients  

  • 1 pound ground breakfast sausage
  • 10 large eggs
  • ½ cup greek yogurt
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • 1 ½ cup shredded cheddar cheese

Instructions

  • Preaheat the oven to 375°F.
  • In a large skillet, brown the sausage.
  • In a large mixing bowl, whisk together eggs, yogurt, salt and pepper.
  • Pour the cheese into the egg mixture and stir to combine.
  • Place the sausage on the bottom of an 8×11 baking dish and spread in an even layer.
  • Pour the egg and cheese mixture of the sausage, spreading evenly.
  • Bake for about 30 minutes or until the eggs are set and a toothpick placed in the center comes out clean.
  • Serve hot.

Nutrition

Serving: 1servingCalories: 356kcalCarbohydrates: 2gProtein: 23gFat: 28gSaturated Fat: 11gPolyunsaturated Fat: 3gMonounsaturated Fat: 11gTrans Fat: 0.1gCholesterol: 295mgSodium: 738mgPotassium: 262mgFiber: 0.03gSugar: 1gCalcium: 204mgIron: 2mgNet Carbohydrates: 1g

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Author

  • Cheryl McColgan

    Cheryl McColgan is the Founder and Editor in Chief of Heal Nourish Grow, where she has published evidence-based health and nutrition content since 2018.

    With over 30 years of experience in fitness, nutrition, and healthy living, and nearly 20 years of professional editorial and journalism experience, she brings both subject-matter depth and trained editorial judgment to everything on the site.

    Cheryl holds a degree in Psychology with a minor in Addictions Studies, completed graduate training in Clinical Psychology, and is a NASM Certified Personal Trainer and E-RYT Certified Yoga Instructor.
    She is the author of 21 Day Fat Loss Kickstart, Make Keto Easy, Take Diet Breaks and Still Lose Weight, The Grain Free Cookbook for Beginners, and Easy Weeknight Keto.

    Read more about Cheryl and the journey that created Heal Nourish Grow on the about page.
    Cheryl McColgan is the founder of Heal Nourish Grow, where she writes about protein, body composition, healthy aging, and evidence-based nutrition, along with the everyday habits that actually make those things work in real life.

    With a background in psychology and graduate training in clinical psychology, plus nearly 20 years of experience in editorial and publishing, Cheryl approaches health from both a research and real-world perspective. She’s also been immersed in fitness and nutrition for more than 25 years, which gives her a practical lens most purely academic content tends to miss.

    Her work today focuses heavily on protein intake (especially for women), muscle retention, metabolic health, and sustainable fat loss, along with topics like sleep, recovery, and wearable health tech. You’ll also find a mix of high-protein, low-carb recipes designed to make hitting those goals easier without overcomplicating things.

    Cheryl’s interest in health and nutrition became more personal after navigating her own autoimmune challenges, which pushed her to dig deeper into how lifestyle, diet, and daily habits impact long-term health. That experience continues to shape how she approaches everything on this site: practical, realistic, and focused on what actually works over time.

    What Cheryl Covers

    Most of the content here falls into a few core areas:

    Protein & Muscle Health: how much you actually need, especially for women and how to use protein to support strength, body composition, and aging
    Fat Loss & Metabolic Health: sustainable approaches that prioritize muscle retention and long-term results
    Healthy Habits & Lifestyle: sleep, movement, strength training, consistency, and the small things that compound over time
    Wearables & Recovery: real-world testing and comparisons of tools like Oura, Whoop and others
    High-Protein & Low-Carb Recipes: simple, realistic meals that support your goals without feeling restrictive
    Travel & Lifestyle: wellness-focused travel, outdoor experiences, and a slightly more elevated take on healthy living

    If you're new, here are a few good places to begin:

    30 Day Healthy Habits Challenge

    Protein Foundations

    High Protein Recipes

    About Cheryl & Heal Nourish Grow

    Coaching and Programs