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    Home » 500+ Keto Recipes » Low Carb Soups and Stews

    Published: Dec 29, 2018 · by: jenniferbanz · As an Amazon Associate I earn from qualifying purchases

    Leftover Steak Soup

    You can make this easy low carb soup recipe in no time at all! Use leftover steak if you have it, or cook up some fresh sirloin. You will not regret it!

    leftover steak soup

    Related: I get all of my grass fed beef and pasture raised chicken from Butcher Box.  Read my honest review here.

    I initially intended this Steak Soup Recipe to use fresh top sirloin steak...and you can definitely do that!  But, sometimes we have leftover steak that we need new and exciting recipes for (first world problem, right?)

    This leftover steak soup recipe is packed with flavor...even my picky husband loved it!

    SOME OTHER LEFTOVER STEAK IDEAS

    • Add it to a salad
    • Omelette
    • Beef stroganoff
    • Steak fried rice (use cauliflower rice for low carb)

    HOW TO MAKE STEAK SOUP

    To get started with the soup, we first must have leftover steak or some steak hanging out in the fridge.  If you have steak already cooked, cut it into 1 inch cubes and move on to the next step.  For fresh steak, cut it into 1 inch cubes and sear it on all sides in a hot dutch oven or heavy bottom pot.  I did mine in batches.

    leftover steak recipes

    “As an Amazon Associate I earn from qualifying purchases.”

    After all of the steak has been browned, remove it from the pot and set it aside.  Then we add in the diced onion and let it caramelize.  Now it is time for the minced garlic, dried herbs, and the sliced mushrooms.

    leftover steak

    We want to get them softened and browned so they look like this:

    Then we add in the beef broth and the soup is almost finished!  After the broth, I like to add in a thickener.  My preference is Xanthan gum because it only requires a teaspoon and it is low carb friendly.  You could also make a slurry.  After I add the xanthin gum, I bring the soup to a boil so it will start to thicken.

    Now it's time for the steak!  Tun off the heat and add in the steak, then ladle into bowls and serve.

    leftover steak recipes

     

    Some other low carb soup recipes you will find here are:

    • Cream of Cauliflower Soup
    • Low Carb Zuppa Tuscana
    • Curried Pumpkin Soup
    • Instant Pot Chicken Soup
    • Keto Tomato Soup

    ⭐ Did you make this Leftover Steak Soup Recipe?  Tag me on Instagram so I can see!  @lowcarbwithjennifer

    Leftover Steak Soup

    You can make this easy low carb soup recipe in no time at all! Use leftover steak if you have it, or cook up some fresh sirloin. You will not regret it!
    4.77 from 21 votes
    PRINT RECIPE PIN RECIPE
    Course: dinner, Soup
    Cuisine: American
    Prep Time: 10 minutes
    Cook Time: 30 minutes
    Total Time: 40 minutes
    Servings: 6
    Calories: 370kcal
    Author: Jennifer Banz

    Ingredients

    • 2 Pounds Top Sirloin Steak, Raw or already cooked
    • Kosher salt
    • 2 Tablespoons Butter
    • 2 Tablespoons Olive oil
    • ½ Onion, diced
    • 4 Cloves Garlic, minced
    • 1 teaspoon Italian seasoning
    • 1 teaspoon Dried parsley
    • ½ teaspoon dried thyme
    • 1 Pound Mushrooms, sliced
    • 4 Cups Beef broth
    • 1 teaspoon xanthan gum (click here to see my favorite brand on Amazon) (you can also make a slurry)

    Instructions

    • If you using already cooked steak, cut into 1 inch cubes and set aside. In a heavy bottom pot over medium heat, add the butter and olive oil. Continue to 3rd step.
    • For fresh steak: In a heavy bottom pot over medium high heat, add the butter and olive oil.  Cut the fresh steak into 1 inch cubes and season with salt.  Sear all sides and then remove from the pot.  work in batches so you do not overcrowd the pot.  Set cooked steak aside.
    • In the same pot over medium heat, add the diced onion.  Cook until the onion is browned and softened.  Now add in the garlic, herbs, and mushrooms.  Continue to cook until the mushrooms are browned and soft.
    • Add in the beef broth and the xanthan gum.  Bring the soup to a boil and cook for a few minutes to let it thicken.  
    • Add in the steak and cook for a few minutes to heat through.  Ladle into bowls and serve.

    Jennifer's tips

    Nutrition for ⅙th of soup: calories 370 / 16g fat / 4g carbs / 1g fiber / 49g protein
    • What is Xanthan Gum?
    Servings: 6

    Nutrition per serving

    Calories: 370kcal

    Nutrition is provided as a courtesy only. Please re-calculate on your own with the ingredients and amounts you used for the most accurate data.

    Watch how to make it

    Keyword :gluten free, leftover steak recipes, recipe for steak soup

    More Low Carb Soups and Stews

    • Keto Chicken Soup with Spaghetti Squash Noodles
    • Keto Cheeseburger Soup with Bacon
    • Low Carb Lemon Chicken Soup
    • Keto Chicken Enchilada Soup

    Reader Interactions

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      Recipe Reviews




    1. April says

      October 16, 2022 at 9:59 pm

      5 stars
      Absolutely wonderful! I did get the recipe mixed up with another one and used Worcestershire sauce, but it still came out amazing and my husband who is extremely picky about soups loved it too! My 16yr old daughter thought it was amazing. Thank you so much!

      Reply
    2. Pupz says

      February 04, 2022 at 3:12 pm

      It looks good, but 2 pounds of steak is not "leftover". Looking for something with maybe a small 8 oz steak, something to flavor and give just a bit of beef.
      '

      Reply
    3. Vanessa says

      January 18, 2022 at 8:30 pm

      5 stars
      I made this exactly to the recipe and it was fantastic! Gluten free for me and low carb for the hubs. 😊 Very easy and flavorful. I will definitely make again.

      Reply
    4. S Wells says

      November 20, 2021 at 7:26 pm

      5 stars
      Easy, quick, delicious and a great way to use leftovers when you dont want to keep eating the same thing. Highly recommend! I like it with a dash of worcestershire and crusty bread 😍

      This is great as-is but is the perfect "throw stuff in" base recipe. I'll add red wine, peas, carrots, fresh herbs or whatever else needs to get used up.

      Reply
    5. Laurie says

      November 04, 2021 at 6:35 pm

      5 stars
      Very good. Thank you!

      Reply
    6. Analuisa says

      October 25, 2021 at 2:34 pm

      5 stars
      Amazing taste thank you had tons of left over ribeye steaks and this just hit the spot

      Reply
    7. Stephanie W says

      October 13, 2021 at 11:56 am

      LOL....I never have 2 pounds of leftover steak, but I am going to try this with fresh steak. It is finally starting to feel like fall and soup is on the menu. We have game day for my son, and I wanted to do this in the slow cooker. I was going to saute the meat, onions, and steak prior, using my slow cooker's saute button. How long would you recommend cooking this on low? Would 7-8 hours be too long? The steak that I am using is a tougher type of meat.

      Reply
    8. Rebekah G says

      September 19, 2021 at 4:32 pm

      5 stars
      Oh my gosh, Jennifer, I so agree about loving soup! I have some leftover air fryer steak bites. I can't wait to make this soup tonight. Thanks for the recipe👍🏻

      Reply
    9. Richard says

      July 20, 2021 at 2:56 pm

      I made this with leftover tri-tip. No additional spices needed, doubled the mushrooms and used frozen homemade chicken broth.

      Amazing!!!!

      Reply
    10. Marla Paz says

      May 24, 2021 at 5:50 pm

      I just made this with left over rib eye. I changed nothing. It is delish! I'm a soup girl too! Loved it

      Reply
    11. Cheryl says

      February 07, 2021 at 3:38 pm

      5 stars
      I added 1 cup of small diced potato with the onions. Then baby carrots right before the mushrooms and added tarragon to the spices. . Deglazed the pot with 1/4 cup of red wine. Amazing! Thanks for the recipe!

      Reply
    12. Gloria says

      January 16, 2021 at 1:30 pm

      Could you add potatoes,carrots?

      Reply
      • jenniferbanz says

        January 22, 2021 at 12:12 pm

        yep!

        Reply
    13. KRG says

      November 09, 2020 at 11:08 pm

      This soup is amazing! I’ve made it twice.. I absolutely crave it!

      Reply
    14. Mary says

      February 07, 2020 at 1:22 am

      4 stars
      Very tasty! I adapted this recipe to what I had, which was leftover cooked steak that was a bit too chewy. I figured stewing it would make it more tender, which it did. The sauteed mushroom and onions went very well with the steak. I also added some chopped carrot and zucchini to mine for extra veggies. Since both the bouillion cube and the steak had a lot of seasoning and spices, I didn't add any others. Was delicious, thanks!

      Reply
    15. Debbie Meservey says

      January 03, 2020 at 6:14 am

      5 stars
      I didn't have nearly as much leftover steak as you did, but I used the amounts in your recipe for all the other ingredients and it was still fantastic. AND - I was using venison steak. 🙂

      Reply
      • Andrew Sims says

        February 16, 2021 at 2:53 am

        5 stars
        I love this recipe with venison too, it's the perfect base, and cooking from raw only takes a few minutes, plus can add whatever tastes good or follow the recipe!

        Reply
    16. Robin Abernethy says

      December 29, 2019 at 8:04 am

      5 stars
      Perfect! I've been looking for a recipe to use up left over rib roast from our Christmas dinner - and to use the beef left on the bones too! Can't wait to try it!

      Reply
    17. LynnM says

      May 15, 2019 at 6:19 pm

      5 stars
      So yummy! Have a pot in the stove now, waiting for hubby to get home. Hope I can wait that long!

      Reply
    18. sarah says

      March 08, 2019 at 3:11 pm

      5 stars
      Love the suggestions from your readers. I am going to be swapping out the mushrooms.

      Reply
    19. Brandi says

      March 08, 2019 at 2:48 pm

      5 stars
      The flavor was so rich and delicious . I love mushrooms with steak and tried it in the soup together for the first time!

      Reply
    20. Kathleen says

      January 19, 2019 at 10:53 pm

      5 stars
      I’ve made this twice and it’s delicious!! Even better the next day. The flavors are great!

      Reply
      • jenniferbanz says

        January 20, 2019 at 8:59 am

        So glad to hear that!

        Reply
    21. Mary says

      January 04, 2019 at 8:50 pm

      Any other options instead of the mushrooms?

      Reply
      • jenniferbanz says

        January 07, 2019 at 3:15 pm

        Cauliflower rice, diced eggplant, zucchini, or you could just add extra onion.

        Reply
    22. Sarah says

      January 02, 2019 at 10:48 am

      5 stars
      I just got a KILLER deal of steak after the new year! I am making this tonight!

      Reply
    23. Renee Goerger says

      January 02, 2019 at 8:19 am

      5 stars
      This soup is hearty and flavorful. I'm thrilled to have found this recipe. I'll be making it often this winter!

      Reply

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    Hey there, I'm Jennifer! I’m the voice, author, and creator behind Low Carb with Jennifer and Live Life Keto. 

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    My keto recipes reflect my philosophy on cooking...everything needs to be easy, fast, exceptionally delicious, and use common ingredients.

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