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Home / Recipes / Keto Casserole Recipes

Corned Beef Casserole with Cabbage (Keto)

By Lisa MarcAurele · Jul 5, 2020 · 15 Comments

1.6K shares
Jump to Recipe
corned beef casserole pinterest image.
corned beef and cabbage casserole

This recipe combines all the delicious flavors of St. Patrick’s Day into one super easy dish. Making this keto corned beef casserole with cabbage is the perfect way to use up your leftovers!

cabbage and corned beef casserole with text overlay
Article Index
  • Ingredients
  • Instructions
  • Tips
  • Why you'll love it
  • Related recipes
  • Recipe

Do you like to have a traditional meal on St. Patrick’s Day?

I enjoy keeping with the holidays, so I usually make a festive corned beef and cabbage. But since the dish is easiest to cook in large quantities, I always end up with tons of leftovers.

One year, I got the idea to use up my leftovers by making a low carb casserole. And what do you know… turns out, a corned beef casserole with cabbage is absolutely delicious!

Honestly, I might start skipping the plain beef and cabbage meal and just go straight to this recipe. Using deli corned beef would make the tasty casserole even easier!

Ingredients

I wanted to incorporate a faux colcannon into the casserole to make it nice and hearty. Colcannon is a traditional Irish dish of mashed potatoes and cabbage that is also popular on St. Patrick’s Day.

To replace the traditional starchy potatoes, I simply swapped them for cauliflower.

You’ll blend the cauliflower with a little butter, milk, and seasoning, then add it to a prepared casserole dish. Fold in the cabbage and meat, bake, and serve!

corned beef casserole recipe ingredients.

What could be better than an easy keto cabbage casserole that’s hearty, delicious, and helps you use up your yummy leftovers?

This easy keto corned beef casserole recipe will definitely be a staple for us each March. It’s so good, I’m tempted to make it year round.

Note: You'll find the full list of ingredients with amounts used in the recipe card at the end of this post. It's shown with a green background.

Instructions

Ready to see how easy it is to make this tasty and filling casserole?

Making the faux mashed potatoes

  1. If you’re starting with a fresh head of cauliflower, cut into florets. If you have frozen cauliflower, they’re likely already cut for you. 
  2. Steam or boil the cauliflower until softened.
  3. Place the cooked cauliflower in your food processor. Add the butter and pulse until mashed. You can also add in a couple ounces of cream cheese to improve taste and texture.
  4. Add in your low carb milk, garlic powder, onion powder, salt, and pepper, then puree until smooth.
mashed cauliflower in food processor.

Completing the casserole

  1. Transfer the cauliflower mash to a large casserole dish. I like to use a 9x13-inch pan.
  2. Fold in the corned beef and cabbage.
  3. Cover with foil and bake at 325°F for about 20 minutes or until heated throughout.
baking the corned beef casserole with cabbage.

That’s it! You can top with sliced green onion, cheese (irish cheddar, anyone?), or crushed pork rinds before serving. 

You could even drizzle on some thousand island dressing for a yummy reuben-inspired flavor!

Tips

For this easy keto casserole dish, I like to use about a half head of cooked cabbage and one pound of cooked meat.

However, these are just approximate amounts. You can use more or less depending on what you have on hand or leftover.

I do recommend sprinkling something on top before serving. Thanks to the cabbage and cauliflower, the color can look a bit bland. The flavors are certainly NOT bland, but I know we eat with our eyes first.

That’s why I like to top mine with sliced green onions. They give it a nice pop of green.

For any leftover corned beef casserole, simply store it in an airtight container in the refrigerator. It will stay fresh for several days and is great reheated!

keto corned beef casserole with cabbage on white plate and in stoneware pan

Why you'll love it

If you find yourself in the mood for a tasty and hearty casserole, you don’t have to wait until March 17th! This casserole dish is delicious all year round.

And at 3.2 net carbs per serving, it’s perfect for when you need an easy low carb meal.

corned beef casserole on white plate.

Related recipes

Casseroles are a great way to feed the whole family or meal-prep for yourself for the week. Check out a few of these simple low carb recipes:

  • Keto Cheeseburger Casserole with Bacon is an easy ground beef dish that’s perfect for sharing with family and friends on a busy weeknight.
  • Stuffed Pepper Casserole has the flavorful ingredients of the classic comfort food combined in a baking dish.
  • Low Carb Keto Eggplant Parmesan Casserole with gluten-free breading is a delicious, cozy dish that’s loaded with cheese and authentic Italian flavor!
  • Loaded Cauliflower Casserole is a cinch to make anytime you need a simple and tasty side dish for your main course.
  • Low Carb Keto Tuna Casserole with spinach is a delicious dinner you can make with ingredients you probably have on hand.
  • AIP Bacon Chicken Ranch Casserole is a delicious dish for anyone on a diary-free or autoimmune protocol eating plan.

Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

Recipe

corned beef casserole in baking pan.

Keto Corned Beef and Cabbage Casserole

4.80 from 5 votes
Got leftover corned beef and cabbage from St. Patrick's Day? Use the leftovers to make a delicious low carb corned beef and cabbage colcannon!
Prep Time:10 minutes mins
Cook Time:20 minutes mins
Total Time:30 minutes mins
Course: Main Course
Cuisine: American
Print Pin Review Recipe Save Recipe View Collections
Servings: 8
Calories: 128

Video

Ingredients

  • 1 head cauliflower
  • ½ cup butter
  • 1 cup low carb milk I used coconut milk in carton
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • ½ teaspoon sea salt
  • ¼ teaspoon ground pepper
  • ½ head cabbage cooked and chopped
  • 1 pound leftover corned beef cut into pieces and warmed
  • 4 green onions
US Customary - Metric

Instructions

  • Preheat the oven to 325°F.
  • Cut cauliflower into florets and steam or boil until softened.
  • Place cauliflower into food processor with butter and pulse until mashed.
  • Add milk, garlic powder, onion powder, salt, and pepper to cauliflower and puree until smooth.
  • Transfer to 9x13-inch baking pan. Fold in corned beef and cabbage.
  • Cover with foil and bake at 325°F about 20 minutes or until heated throughout.
  • Sprinkle with sliced green onion tops to serve.

Notes

3.2g net carbs per serving

Low Carb Sweeteners | Keto Sweetener Conversion Chart

Nutrition

Serving: 188g | Calories: 128 | Carbohydrates: 5.6g | Protein: 9g | Fat: 8g | Saturated Fat: 3.8g | Cholesterol: 35mg | Sodium: 683mg | Fiber: 2.4g | Sugar: 2.5g

Additional Info

Net Carbs: 3.2 g | % Carbs: 10.6 % | % Protein: 29.8 % | % Fat: 59.6 % | SmartPoints: 4
Values
Array
(
    [serving_size] => 188
    [calories] => 128
    [carbohydrates] => 5.6
    [protein] => 9
    [fat] => 8
    [saturated_fat] => 3.8
    [cholesterol] => 35
    [sodium] => 683
    [fiber] => 2.4
    [sugar] => 2.5
)

Notes on Nutritional Information

Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

Copyright

© LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

First published on March 4, 2016. Last updated on February 25, 2022, with new images and additional recipe information.

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Reader Interactions

Comments

  1. Mona

    March 09, 2023 at 11:28 am

    Could I use heavy whipping cream for the low carb milk?

    Reply
  2. Mary Alice

    April 05, 2022 at 10:09 pm

    We just had this tonight for supper. Wow! It's a great comfort food. I enjoyed every bite. Like you, I might just skip the traditional meal and go straight to this recipe. Thanks for these warm, satisfying bites.

    Reply
  3. Lori

    April 13, 2021 at 3:30 pm

    5 stars
    Do you think this would freeze well?

    Reply
    • Lisa MarcAurele

      April 13, 2021 at 9:24 pm

      The only thing that may not do well after freezing is the cabbage. It might get mushy.

      Reply
  4. Pete

    February 18, 2020 at 12:54 pm

    What is this left over Corn Beef and Cabbage?

    Reply
    • Lisa MarcAurele

      February 19, 2020 at 2:12 pm

      The casserole is generally made with leftover corned beef. You can use leftover cabbage too from St. Patrick's Day dinner.

      Reply
  5. Steven

    February 13, 2020 at 1:13 pm

    Fantastic, my wife isnt a fan of potatoes and cauliflower is a great idea, thank you! We always have left over beef mince so will give this a try. I would probably slow cook it as an alternative to really infuse the flavours.

    Reply
  6. Beth.H

    March 15, 2016 at 7:03 pm

    4 stars
    Looks good, I have some leftover corn beef and cabbage sitting in my fridge already. I might add a little Irish cheddar to round it out. 🙂

    Reply
    • Lisa

      March 15, 2016 at 7:15 pm

      The addition of Irish cheddar sounds fabulous!

      Reply
      • Rose

        July 26, 2018 at 12:59 pm

        OMG! That was my first thought: add Irish Cheddar! hehehe.

      • Lisa

        July 26, 2018 at 8:30 pm

        That would be a yummy add I'm thinking.

  7. Lea

    March 08, 2016 at 1:49 pm

    5 stars
    Thanks for the wonderful recipes! One way to eat more cabbage is to ferment it for sauerkraut -- it's super-easy to do, super-healthy, and tastes tons better than any store-bought kraut. I also love roasting cauliflower and broccoli and then sprinkling with parmeson. Yum!

    Reply
    • Lisa

      March 08, 2016 at 3:13 pm

      You know, I never thought to make home made sauerkraut. I've got to try that. I love it. Roasted veggies with parmesan is one of my favorites!

      Reply
  8. Alicia

    March 04, 2016 at 11:05 am

    What a great idea! Looks very filling too. I've been obsessed with cauliflower lately. And your right...cauliflower and cabbage do not make the house smell very welcoming. Phew!

    Reply
    • Lisa

      March 05, 2016 at 3:01 pm

      I'm glad I'm not the only one obsessed with cauliflower! 🙂

      Reply
4.80 from 5 votes (2 ratings without comment)

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