My post for Corned Beef and Cabbage Soupfirst appeared on Grumpy’s Honeybunch where I am a contributor. Try this Corned Beef and Cabbage Soup low carb recipe!

Looking for a keto St. Patrick’s Day soup? Look no further! Spiced  corned beef, creamy turnips, onion, and fennel bulb all make a delicious appearance in this keto instant pot corned beef and cabbage soup recipe. Make your corned beef and cabbage soup low carb! You won’t regret making the best keto cabbage soup!

Corned Beef and Cabbage Soup in a wooden monkey pod bowl with fennel fronds sprinkled on top and lemon halves in the background

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If you think there’s nothing that tops the comfort food list like corned beef and cabbage, then you need to try this Corned Beef and Cabbage Soup low carb recipe! All the delicious flavors of corned beef, reworked into a soul-warming keto corned beef and cabbage soup full of low carb goodness.

This is the classic Irish corned beef dish you love, transformed into a soup. It’s not only great for leftover corned beef, but has zero of the starchy potatoes you try to avoid on a keto diet. Plus, a few flavorful surprises!

Looking for a keto St. Patrick’s Day soup? Look no further! Spiced  corned beef, creamy turnips, onion, and fennel bulb all make a delicious appearance in this keto instant pot corned beef and cabbage soup recipe. Make your corned beef and cabbage soup low carb! You won’t regret making the best keto cabbage soup!

Try this Keto Broccoli Leek Soup with Turkey and Bacon!

Why I created low carb cabbage soup recipe in the instant pot

It wasn’t always the case, but now I love my pressure cooker.  It was comfort food recipes like this Cheesy Keto Super Taco Instant Pot Omelet that won me over.

With this Corned Beef and Cabbage recipe, you can sauté the onions and toast the spices using the sauté setting. As a result, I have less dirty dishes. This is one of the reasons I fell in love with the Instant Pot!

The Instant Pot makes it easy to use more than one function with all of its different settings. Because of these reasons I chose to make my soup in an Instant Pot.

If you love the idea of turnips replacing potatoes, try this Keto Turnip Breakfast Hash with Bacon!

Corned Beef and Cabbage Soup - low carb recipe ingredients

Related: Try this Keto Creamy Tomato Soup for the Instant Pot!

Corned Beef and Cabbage Soup Tips

Can I use corned beef leftovers for corned beef and cabbage soup low carb recipe?

Absolutely! You can definitely use your leftover corned beef from St. Patrick’s Day for this instant pot corned beef and cabbage soup. Dice up the corned beef leftovers or shred then and toss them right into the stock! And, it is such a perfect winter dinner! So if you don’t know what to make with leftover corned beef brisket, you’ve found yourself a winning dinner recipe. Have yourself a second St. Paddy’s Day feast!

How did you make this low carb cabbage soup into a keto soup?

Corned beef and cabbage is not difficult to make ketogenic. Most people eat their corned beef and cabbage with a side potatoes, so most versions of the soup add diced potatoes in the broth. As a substitution, you can add a low carb alternative like diced turnips to your stock and cook like you would potatoes.  Lovely turnips with a lavender blush, alongside a bowl filled with mustard seeds and a bay leaf resting on top, with a bright yellow lemon in the background

Can I make this a slow cooker corned beef and cabbage soup low carb recipe?

Yes! You can certainly make this in a crockpot. Just do the sautéing on your stovetop and finish the recipe off in your slow cooker instead of an Instant Pot. Cook on low for 4-6 hours

Why do you use the saute setting on the Instant Pot for this recipe?

The saute setting allows you to make this a one-pot dinner. You saute the onions, celery, fennel bulb, and garlic and toast the mustard seeds right in the same pot. As a result, you have less dishes to wash. That always sounds great to me! Finger pointing at saute setting on instant pot for corned beef and cabbage soup low carb recipe

Is corned beef keto friendly?

Yes! As long as you’re not eating potatoes along with your corned beef dinner, you’re golden!

The best keto comfort food soup! This keto instant pot corned beef and cabbage soup low carb recipe will warm you right up and leave you doing an Irish jig. Use up those St. Patrick’s Day corned beef leftovers with this keto leftover corned beef and cabbage soup recipe!

If you have more leftover corned beef to use up, try this Keto Corned Beef Hash with Eggs and Turnips!

Click this link for more Keto Main Dishes from Keen for Keto.

How to make leftover corned beef soup

Time needed: 1 hour and 30 minutes

Made in the Instant Pot, Corned Beef and Cabbage soup is a delicious way to enjoy your leftover Corned Beef dinner!

  1. Sauté and toast the aromatics.

    First, you will sauté and toast the aromatics. For this, you’ll use the sauté function on your Instant Pot. 

  2. Process some of the broth.

    After sautéing and toasting the aromatics, you’ll add liquid to make a vegetable broth. Then, you’ll remove one cup of the mixture to process in a blender. This helps the flavors to marry and makes the stock much heartier with a richer flavor.  Fennel b

  3. Add processed stock and remaining ingredients to pot.

    The processed stock goes back into the pot with the rest of the stock as well as the rest of the ingredients except the fresh herbs and the lemon juice. If you are not using leftover corned beef in this recipe, then this is the step where you would add your raw beef to the Instant Pot.

  4. Add water for more broth

    Fill the pot to the max fill line with water. It may feel like a thick soup, but will thin out as it cooks, as the vegetables release more liquid. Or if you prefer an Irish Corn Beef Stew, don’t thin yours out as much.

  5. Release pressure and serve!

    After the low carb soup is finished cooking, be sure to allow 15 minutes for the pressure cooker to slow release pressure. 

    Add your chopped fennel fronds, chopped parsley, and squeeze in the juice of the lemon. Stir it up and enjoy! Corned beef and cabbage soup low carb recipe overhead shot in a wooden bowl with fresh parsley

Related: Keto Creamy Tuscan Chicken Thighs in Crock Pot

You May Need

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If you don’t own an Instant Pot, then I highly recommend one! I thought I didn’t need one and resisted buying it. Then when we did get one, I realized it was an awesome tool to use in the kitchen! We’ve had it for quite a while and it’s been so good to us! It has plenty of settings, but is still simple and easy to figure out. Try it out with this corned beef and cabbage soup low carb recipe! Here’s the Instant Pot I use:

Corned beef and cabbage soup low carb recipe overhead shot in a wooden bowl with fresh parsley

Corned Beef and Cabbage Soup Low Carb Recipe

Yield: 10 servings
Prep Time: 20 minutes
Cook Time: 50 minutes
Additional Time: 20 minutes
Total Time: 1 hour 30 minutes

It’s about that time! You’re finished with St. Patrick’s Day and don’t know what to do with those corned beef leftovers. You’re in luck! I’ve got the best leftover corned beef and cabbage soup recipe for you! This ketogenic corned beef and cabbage soup recipe is different from the rest. Click the link to find out why with this keto comfort food dinner!

Ingredients

Instructions

  1. Set the Instant Pot to sauté. It should read “30”.
  2. Add butter and onion. Saute for 10 minutes, stirring frequently.
  3. Add celery stalks, fennel, and garlic. Saute 6 more minutes.
  4. Push vegetables to the sides of the pot so there’s a “hole” in the middle, exposing the metal bottom of the pan. Add the mustard seeds to the middle of the pan and stir, toasting the seeds for 2 minutes.
  5. Add the allspice to the center with the mustard seeds and toast for 2 more minutes.
  6. Turn off the sauté feature.
  7. Add 2 cups water to the pot and stir.
  8. Remove 1 cup of the broth and process in a blender till smooth. Return the processed stock to the pot. Stir.
  9. Add the corned beef, bay leaf, tomato paste, cabbage, turnips, salt, and pepper. Fill the instant pot up with water till it nears the Max Fill line. Do NOT fill it higher than this line.
  10. Place the lid on the Instant Pot, turn the vent to “sealing”, and set the Instant Pot to cook for 30 minutes on high pressure.
  11. While the cabbage soup cooks, dice the parsley and fennel fronds, being careful not to use any of the harder stems of the fennel.
  12. When the soup is done cooking, allow the Instant Pot to sit and slow release pressure for 15 minutes. After 15 minutes, you may set the vent to “venting” to release the remainder of the pressure.
  13. When the pressure cooker is done venting, open the pot. Add the parsley, fennel fronds, and lemon juice, and stir. Serve and enjoy!
Nutrition Information:
Yield: 10 Serving Size: 2.4 cups
Amount Per Serving: Calories: 331Total Fat: 24gCarbohydrates: 9gNet Carbohydrates: 6gFiber: 3gSugar: 3gProtein: 20g

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You'll also love these other keto comfort food dinners!

It’s about that time! You’re finished with St. Patrick’s Day and don’t know what to do with those corned beef leftovers. You’re in luck! I’ve got the best leftover corned beef and cabbage soup recipe for you! This ketogenic corned beef and cabbage soup recipe is different from the rest. Click the link to find out why with this keto comfort food dinner!

It’s about that time! You’re finished with St. Patrick’s Day and don’t know what to do with those corned beef leftovers. You’re in luck! I’ve got the best leftover corned beef and cabbage soup recipe for you! This ketogenic corned beef and cabbage soup recipe is different from the rest. Try this keto comfort food dinner!

About the Author: Jenn

12 Comments

  1. JOSEFINE September 27, 2019 at 6:06 pm - Reply

    I must thank you for sharing such nice recipes for a healthy life. I need to lose some pounds and I think that this can help me in achieving my goals.

    • Jenn September 27, 2019 at 6:35 pm - Reply

      You’re so welcome! Thanks for stopping by!

  2. Fitoru Fitness January 14, 2020 at 1:46 am - Reply

    I love the recipes you are cooking! Very well done. So good that I am going to try it myself. Hope to visit with you soon!

    • Jenn January 17, 2020 at 5:51 pm - Reply

      Thanks so much! This instant pot soup is a good one!

  3. Susan May 6, 2020 at 5:26 am - Reply

    Instructions mention allspice. Ingredients do not. Amount please

    • Jenn September 23, 2020 at 9:15 am - Reply

      There’s no allspice in this soup. I fixed the instructions to reflect that. Thanks for catching that for me!

  4. […] Corned Beef and Cabbage Soup […]

  5. […] If you love soup, try this Instant Pot Corned Beef and Cabbage Soup! […]

  6. Joe March 22, 2021 at 9:43 am - Reply

    Amount Per Serving: Calories: 331Total Fat: 24gCarbohydrates: 6 netgFiber: 3.2gSugar: 3gProtein: 20g

    Seems pretty high in carbs and sugar for Keto. jmho I’m going to assume you are OMAD

    • Jenn March 23, 2021 at 12:21 pm - Reply

      I can see why you’re confused. The macros were recorded a bit wonky. The macros at the top of the page were correct, but these ones in the card needed updating. The correct numbers are 9g carbs, 6g net carbs, 24g fat, 20g protein. Hope that helps!

  7. Barbara June 11, 2021 at 11:55 am - Reply

    I don’t have an Instant Pot can I cook this on the stove top?

    • Jenn June 12, 2021 at 11:55 am - Reply

      Yes, you certainly can!

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Hi! I’m Jenn and this is your safe place from the naysayers and keto police. My journey to the ketogenic diet has been an enormously healing one, and I hope yours can be, too! Read More Here