Low Carb Keto Zuppa Toscana Soup Recipe

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This Low Carb Keto Zuppa Toscana Soup recipe is packed with flavor from crispy bacon, Italian Sausage, spinach and tender cauliflower, all simmered in a rich, creamy broth.

For more easy recipes packed with flavor, try our cauliflower wings and chicken caprese. They’re both reader favorites!

Low Carb Keto Zuppa Toscana Soup  packed with bacon, Italian Sausage, spinach and tender cauliflower all in a rich, creamy broth.

Why You’ll Love This Low Carb Keto Zuppa Toscana

From broccoli cheddar soup to lasagna soup, who doesn’t love to indulge in a big bowl of soup on a cold day?

Oh wait, you’re cutting carbs? Trying to follow a keto friendly diet? I feel ya. Doesn’t it seem like all the comfort foods involve carbs somehow? Well, not this Keto Zuppa Toscana recipe.

Here’s why you’ll love it.

  • You may remember this Olive Garden Copycat Zuppa Toscana Soup recipe from a few years back. It’s SO good, and this recipe transforms it into a keto friendly dinner.
  • Between the savory Italian sausage and thick-cut bacon, this is a recipe that’s absolutely packed with flavor. You won’t miss the carbs, I promise!
  • This is also a soup that’s hearty and satisfying. You know how some soups leave you hungry for more? Not this Keto Zuppa Toscana!

Important Ingredient Notes

  • Italian Sausage I use the mild, bulk sausage. Use spicy if you prefer, or links with the casings removed.
  • Thick cut bacon – Some people prefer to add the bacon at the end of the cook time as a garnish so that it stays crispy, not chewy. Your call.
  • Beef broth – I like using beef bone broth, which has extra nutrients and collagen.
  • Cauliflower The dream vegetable that replaces potatoes in many low carb meals (like buffalo cauliflower). You can also use turnips if you prefer!
  • Heavy whipping cream – For that indulgent creamy broth. The best thing about keto is the heavy cream!
  • Spinach – While Olive Garden and many other people use kale, my family prefers the taste of spinach. You choose what you love!
Zuppa toscana soup being ladled out of pot.

How to Make Low Carb Keto Zuppa Toscana

Cook the Meat: Brown the sausage and bacon in a large soup pot or Dutch oven. 

Simmer: Add the beef bone broth, onions, garlic, and cauliflower. Cover and cook on medium heat for about 15 minutes, or until the cauliflower is tender.

Add the Next Ingredients: Stir in the heavy cream and spinach, then cook until the spinach wilts.

Finish: Serve with Parmesan cheese and a pinch of salt, pepper, and/or crushed red pepper flakes.

Tips and Tricks

  • Due to the creamy nature of the soup, this one isn’t suited for freezing. You can store leftover Low Carb Keto Zuppa Toscana in the refrigerator for up to 4 days and reheat it on the stovetop over medium or in the microwave.
  • Cut the cauliflower into even pieces to ensure it’s all done cooking at the same time.
  • There’s a lot of room to make this recipe your own by adding different herbs and spices or other low carb vegetables.
Bowl of Low Carb Zuppa Toscana Soup with cauliflower and spinach.

Recipe FAQs

What is a keto diet?

A ketogenic diet is a low carb, high fat diet, similar to Atkins. The goal of a ketogenic diet is to drastically reduce your carbohydrate intake and instead consume fats. By reducing your carbs it puts your body into a state of ketosis, burning fat for energy.

What foods should I avoid on a keto diet?

Avoid starches like bread, rice, pasta, and cereal. Beans and legumes are off the menu, and the only fruit allowed is small portions of berries. Potatoes and other root vegetables aren’t allowed, and neither are sugary foods and alcohol. On the bright side, you get to eat Crack Chicken with this easy sauteed cauliflower on the side!

What foods should I eat on a keto diet?

Proteins such as fish, beef, chicken, eggs are all good to eat, as are leafy greens and vegetables that grow above ground like broccoli and cauliflower. Avocado, nuts, and seeds are also good choices and make great snack options. High fat dairy like hard cheeses, high fat cream, and butter get the thumbs up, and stevia is an acceptable keto-friendly sweetener. Thank goodness, because I use that in my favorite Pumpkin Cream Cold Brew coffee!

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Keto Zuppa Toscana Soup

4.68 from 379 votes
By: Aimee
Low Carb Keto Zuppa Toscana Soup recipe is packed with flavor from crispy bacon, Italian Sausage, spinach and tender cauliflower all in a rich, creamy broth.
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 6 servings


  • 1 lb mild Italian Sausage
  • 4 slices thick-cut bacon
  • 32 oz Beef bone broth or beef broth
  • 1 small onion diced
  • 3 cloves fresh garlic minced
  • 1 head fresh cauliflower diced
  • ½ cup heavy whipping cream
  • 2 cups fresh spinach 5 oz package, or kale
  • salt and pepper optional
  • crushed red pepper flakes optional
  • shredded parmesan cheese for garnish optional
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  • Using a large soup pot (like this dutch oven), brown your sausage and bacon together. Cut your bacon into bite sized pieces to make it easier to cook.
  • Once your meat is cooked, add in beef bone broth, onions, garlic, and cauliflower. Cover and cook on medium heat for about 15 minutes, until the cauliflower is tender.
  • Once the cauliflower is softened, add in heavy cream and spinach (or kale). Cook for about 5 minutes, until spinach (or kale) is soft.
  • Serve with a spinkle of parmesan cheese and a pinch of salt, pepper, and/or crushed red pepper flakes. ENJOY!


  • Swap out the cauliflower with turnips instead.
  • Due to the creamy nature of the soup, this one isn’t suited for freezing.



Calories: 854kcal, Carbohydrates: 12g, Protein: 62g, Fat: 61g, Saturated Fat: 25g, Polyunsaturated Fat: 34g, Cholesterol: 206mg, Sodium: 972mg, Fiber: 3g, Sugar: 5g
Course: Soups and Stews
Cuisine: American
Did you make this recipe?Mention @shugarysweets or tag #shugarysweets!
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About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

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Posted on November 7, 2018

Comments & Reviews

  1. 5 stars
    I absolutely love this recipe. It’s so versatile. I’ve made it several times. Each time I look to my pantry for variations. My latest was to use part chicken bone broth and part no salt chicken broth. I used fresh cauliflower and 1/2 package of Trader Joe’s Tri-color cauliflower. Coconut milk instead of cream. So yummy!

  2. 5 stars
    I made this with some tweaks. I cooked the cauliflower in the air fryer first to enhance the flavors. I cooked the sausage and then drain out of the pot. Cooked onion and garlic in some of the sausage oil and bits on the bottom. Added beef broth, cooked sausage, and a leftover Parmesan rind I had in the freezer. Once simmering, I added the mostly cooked cauliflower and kale. Then stirred in just a few Tbsp of cream. Served with a squeeze of lemon and chopped parsley and bacon pieces. Carb-loving, vegetable-shy boyfriend loved it! I’m making batch 2 as we speak.

  3. 5 stars
    I followed this exactly and loved it. My husband and I have been eating it for a week straight. Thanks so much. I went through the comments and read some of the changes people were making and personally was disgusted. I hate chicken, and chicken broth or turkey bacon. Keto needs fat and sodium, why use low sodium? Geez people

  4. The recipe as written is very tasty. It doesn’t seem balanced to me. Too much Cauliflower, not enough Green. When I made it the second time I used 1/2 the cauliflower and 3 times the greens. (Broccoli Rabe ) I also used spicy Italian sausage, instead of mild, chicken stock instead of beef bone broth and 1 cup of coconut cream instead of 1/2 c. Heavy cream. I also cooked bacon first then put it on the soup when serving it so it would remain crisp. No matter how crispy bacon starts off, it gets soggy in the course of cooking soup

  5. 4 stars
    This would be better in my mind if the cauliflower and spinach proportions were swapped. Too much white, not enough green, but flavor is excellent. Also if I make this again I will add crisp bacon on top to serve. It got soggy almost immediately when broth was added

  6. This was good but nutrition info must be way off.
    I just calculated a rough estimate using the ingredients list (leaving out negligible items like garlic, onion, salt, pepper). And came up with 465 calories and 5 net carbs per serving if you divide everything by 6 servings.

  7. 5 stars
    I was hesitant at first but this has so much flavor. I really enjoy pepper flakes so I added some when I added the cauliflower. I just want to drink the broth forever!

  8. 5 stars
    I love this recipe so much that I’ve now made it two weeks in a row. I make some subtle changes like buying whatever Sausage is on sale and adding Italian seasoning. I also add an entire 10oz bag of spinach and use frozen riced cauliflower. Simple, quick and delicious!

  9. I don’t eat pork or beef so I made this with Turkey bacon & chicken spicy sausage with lo-sodium chicken broth. Oh my gosh, it doesn’t have the amount of Fat as the traditional, but the taste is amazing. I added kale ilo spinach. So good! Added a little olive oil to brown sausage & bacon as doesn’t render the fat like pork bacon & sausage.

  10. This is delightful! I cooked the bacon and sausage first in the oven and used the residual fat to roast a head of garlic, the onions and the cauliflower on a sheet pan. I transferred the bacon, sausage, roasted cauliflower and aromatics to the bone broth that had been warming in the Dutch oven and then added the spinach and heavy cream. So filling and delicious – thank you for sharing!

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