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Keto Sausage Breakfast Casserole

Keto Recipes > Keto Breakfast Recipes
Keto Sausage Breakfast Casserole
The perfect low carb casserole for feeding your whole family!

A casserole is the perfect time-saver dish. It can provide plenty of “cook once, eat twice, or more!” leftovers, or it can satisfy a hungry crowd. Whatever the case in your home, you’ll love the ease of preparation with this keto sausage breakfast casserole.

Keto Sausage Breakfast Casserole
Be sure to select sausage that is all-natural with no added sugar or fillers. Jimmy Dean brand makes a certified gluten-free, no sugar added sausage with none of those chemical additives most of us like to avoid. This type of sausage does not have a lot of excess fat/liquid to drain away, so you can brown the sausage and cook the veggies in the same pan. That makes cleanup much easier!

The consistency of this finished dish is on the custard side, with a rich cheddar sauce and just a hint of heat from ground cayenne pepper. If you aren’t a fan of the spice, simply omit it but it adds a nice balance to the dish.

Feel free to change up the type of cheese you use from time to time. In place of cheddar you can substitute Monterrey Jack, Swiss, or even smoked Gouda.

Whatever you decide, in under an hour you can have a bubbling dish on the table that will keep you satisfied for hours.

Yields 6 servings of Keto Sausage Breakfast Casserole

The Preparation

  • 16 ounces pork sausage
  • 2 cups green cabbage, shredded
  • 2 cups zucchini, diced
  • 1/2 cup onion, diced
  • 3 large egg
  • 1/2 cup mayonnaise
  • 2 teaspoons yellow mustard
  • 1 teaspoon dried sage
  • 1/4 teaspoon cayenne pepper
  • 1 1/2 cups cheddar cheese, shredded

The Execution

1. Preheat oven to 375F. Brown the sausage in a large skillet over medium heat until almost cooked through.

Browning pork sausage with red pepper flakes in a large skillet

2. Add the cabbage, zucchini, and onion, cooking until the vegetables are tender and the sausage is fully cooked. Pour the mixture into a greased casserole dish.

Sauteing shredded cabbage, sliced zucchini, and onion with browned sausage in a skillet

3. In a mixing bowl, whisk the eggs, mayonnaise, mustard, sage, and cayenne pepper until smooth.

Eggs, mayonnaise, yellow mustard, sage leaves, and cayenne pepper in a white bowl

4. Add two-thirds of the shredded cheese to the egg mixture and stir.

Shredded cheddar cheese piled on top of the whisked egg and mustard mixture

5. Pour this mixture over the sausage and vegetables in the casserole dish.

Sausage, cabbage, and zucchini filling layered in a white casserole dish

6. Top the casserole with the remaining shredded cheese. Bake for 30 minutes, or until the casserole is bubbling around the edges and the cheese is melted and beginning to brown.

Egg custard and shredded cheddar poured over the sausage vegetables before baking

7. Remove from the oven and serve hot.

Baked sausage breakfast casserole with melted cheddar, garnished with cilantro in a bowl

This makes a total of 6 servings of Keto Sausage Breakfast Casserole. Each serving comes out to be 555 calories, 47.3g fats, 5.6g net carbs, and 25.8g protein.

NUTRITION CALORIES FAT CARBS FIBER NET CARBS PROTEIN
16 ounce pork sausage 1474 123.6 6.4 0 6.4 84.1
2 cup green cabbage 45 0.1 10.4 4.5 5.9 2.3
2 cup zucchini 63 1.5 11.3 4.2 7.1 4.8
1/2 cup onion 32 0.1 7.5 1.4 6.1 1.1
3 large egg 236 15.7 1.2 0 1.2 20.7
1/2 cup mayonnaise 748 82.3 0.6 0 0.6 1.1
2 teaspoon yellow mustard 6 0.4 0.6 0.4 0.2 0.4
1 teaspoon dried sage 2 0.1 0.4 0.3 0.1 0.1
1/4 teaspoon cayenne pepper 1 0.1 0.3 0.1 0.1 0.1
1 1/2 cup cheddar cheese 742 61.2 5.7 0 5.7 42
Totals 3350 285.1 44.4 10.9 33.6 156.5
Per Serving (/6) 558 47.5 7.4 1.8 5.6 26.1

Keto Sausage Breakfast Casserole

This makes a total of 6 servings of Keto Sausage Breakfast Casserole. Each serving comes out to be 555 calories, 47.3g fats, 5.6g net carbs, and 25.8g protein.
No ratings yet
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 6 servings
Calories 555 kcal

Ingredients
  

  • 16 ounce pork sausage
  • 2 cup green cabbage shredded
  • 2 cup zucchini diced
  • ½ cup onion diced
  • 3 large egg
  • ½ cup mayonnaise
  • 2 teaspoon yellow mustard
  • 1 teaspoon dried sage
  • ¼ teaspoon cayenne pepper
  • 1 ½ cup cheddar cheese shredded

Instructions
 

  • Preheat oven to 375F. Brown the sausage in a large skillet over medium heat until almost cooked through.
  • Add the cabbage, zucchini, and onion, cooking until the vegetables are tender and the sausage is fully cooked. Pour the mixture into a greased casserole dish.
  • In a mixing bowl, whisk the eggs, mayonnaise, mustard, sage, and cayenne pepper until smooth.
  • Add two-thirds of the shredded cheese to the egg mixture and stir.
  • Pour this mixture over the sausage and vegetables in the casserole dish.
  • Top the casserole with the remaining shredded cheese. Bake for 30 minutes, or until the casserole is bubbling around the edges and the cheese is melted and beginning to brown.
  • Remove from the oven and serve hot.

Nutrition

Calories: 555kcalCarbohydrates: 5.6gProtein: 25.8gFat: 47.3g
Keyword comfort-food, eggs, family-friendly, gluten-free, high-fat, high-protein, keto, low-carb, meal-prep, nut-free, oven-baked, pork, simple & easy, sugar-free

Nutrition data sourced from the USDA FoodData Central database and manufacturer labels. How we calculate nutrition →

Comments

  1. This is going to happen soon. Have you tried subbing the zucchini for something else, say, cauliflower? Broccoli? I’m just out of zucchini and not trying to go to the store for one thing til next week. Thanks!

    • Personally I’d go for the broccoli so you still get some green and more of a contrasting taste. Cauliflower would be good too though! I haven’t tried any of the options yet, but feel free to use a veg of your choice. Just remember to recalculate the nutritional information because it might be a little bit different. Good luck!

      • Thanks, Laura! Yeah, I’m not afraid of green, I get my two cups of spinach or something like it, per day. I’m also a hard-core MFP food logger (I swear, I just logged 1 tablespoon of squash seeds I roasted earlier today and tasted after they were done), so no sweat, there. I even make my own recipes and log those, as well. Was just looking for flavor/texture profile advice, since I’ve never put zucchini into an egg/breakfast bake before.

  2. This is killer. I made it with zucchini AND broccoli. I also made it with 6 eggs instead of 3 so it goes farther. Then I made it for a large family breakfast so I added a pound of bacon cut into small pieces along with the sausage and 9 eggs. My family doesn’t care for cabbage so that was dropped. Kudos, great recipe.

  3. Simple and delicious, and filling. I could barely tell there were veggies in it. A good way to sneak vegetables into breakfast!

  4. Becca Goes Keto says

    Hi there… I stumbled upon this searching for a keto recipe that uses sausages… Buuuut the sausage pictured is nothing like what we call sausage in Australia. Did you squeeze the meat out of the casing for this? Or is “sausage” used interchangeably with minced beef?

    • Hi Becca! It’s so interesting to hear how food terms are used in other parts of the world. In America sausage often comes in links, or just loose without the casings. If you can only buy it inside of casings then simply remove from casings. 🙂 I think we use the term ground beef for minced beef.

      • Vikas Sunny Christopher says

        I did the same mistake, I am in India and sausages are come steamed/cooked,all you need to do is either brown them whole or eat them up as is. I will be replacing the sausage meat with minced lamb, chicken, pork or beef. Also can you please mention quantities in grams as well? One website I found said 1 cup of cabbage is 340g and Google said 1 cup of shredded cabbage is 79g. Guess what? I put 680g of cabbage in the casserole, lol.

    • Phoenix Johnson says

      Becca, Coles often has sausage mince in the mince section. It’s a bit softer than regular minced beef. Might be good to give that a go 🙂 Or they also have lamb mince, which is seriously amazing to replace other minced meats. Before we started keto, we did regular nachos with lamb mince, and all I can say is mouth-gasm. And it’s actually roughly the same price or cheaper than beef!

  5. I made this last night to have for my breakfasts in the morning. OMG this is fantastic! I was leery of it because I just don’t see cabbage and zucchini as breakfast foods. Oh, how wrong I was. This absolutely fantastic and will definitely make it again. And agan. And again. The only thing I did different is leave out the sage because I just don’t like the taste of it. Oh, and I put in an extra egg just because it looked like it needed it. I just have to be careful to not binge on it, because I easily could. Yes, it’s that good.

    • Thank you for the feedback! I’m so glad you like it.
      When I make casseroles like these I find it helpful to individually wrap the servings, when storing in the fridge, so I’m not tempted to eat more than one. 🙂

  6. Holly Schinker says

    Love this! We’ve made it every week for the past 3 weeks but we double the recipe to last through the work week and we also used roasted garlic mayo instead of regular. Sooo good!

  7. Delicious!

  8. Just made this tonight, super tasty and very easy to make!!

  9. Can you make it without mayo?

  10. mikeplank says

    This has become one of my go-to recipes when I am Ketoing!

  11. Nelibeleo says

    what size casserole dish is used? 8×8 is too small….

    • I’ve made this in a 9×13 and the casserole was about 1/2-3/4 full.

      • Nelibeleo says

        This past weekend I doubled the recipe and filled up one 9X13 and two 8×8’s. Though, I added 2 cups of coconut milk, more cheese and 6 more eggs. I’m freezing what I don’t eat in a week and now I won’t have to cook this weekend for the coming week!

  12. Thank you, this was delicious. I love the idea of using cabbage. I wanted something more like a traditional breakfast casserole, so I added some keto “bread” to it as well.

  13. Marie-Therese Gomes says

    I just wanted to thank you for sharing this recipe. It’s so filling, and absolutely delicious. I had friends over for brunch yesterday and used this recipe for the first time, and it was a total hit (even for non-keto peeps). I would definitely use this recipe again next weekend as part of my meal prep for an upcoming road trip!

  14. Bradley James says

    Thanks, this taste Great! I make this for my whole week and then vac seal them and freeze them in individual servings. Makes for a quick easy breakfast.

  15. HI, I got my instant pot a couple months ago and have been trying all kinds of recipes. I just got done with this recipe and it was delicious. It cooked really well in the instant pot. Tonight im going to have a casserole not sure which one but i know it will be a success. Thanks for all the recipes i just started keto and im loving it.

  16. This shit was Fn delicious. I doubled up on onion, used a little more egg and swapped mayo to greek yogurt. It was just what I had, and I love onion 🙂

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