Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (2024)

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5 stars (from 10 ratings)

By Traci York18 Comments / Jump to Recipe

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A quick to pull-together cozy meal with rich flavor. This hearty and nourishing White Bean Fennel Soup Recipe is so satisfying on its own with a thick slice of crustyMultigrain Sourdough Breador top withSourdough Croutonsto make a cozy meal. This recipe is vegetarian, vegan and gluten free.

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (6)

This recipe was first published December 2017 and updated October 2022. The recipe remains unchanged.

Table of Contents

Why You’ll Love This Fennel Soup Recipe

There’s so much to love about this vegetarian and vegan fennel soup recipe. Rich and complex flavor comes from the simplest ingredients! Here’s why you’ll love this recipe:

  • Simple to Make – a one pot meal with just eight basic ingredients.
  • Nourishing Ingredients – a soup we can feel good about eating.
  • Cook and Prep Time – this recipe can be on the table in just under 30 minutes.

For those on the fence about soup with fennel, this is a recipe I recommend starting with. Cooking truly transforms the flavor of fennel into a rich, sweet and complex tasting vegetable.

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (7)

Ingredients You’ll Need

With just a few simple pantry staples and a short list of fresh ingredients, this fennel soup recipe is easy on the wallet. Here’s what you’ll need for this recipe (see recipe card for details):

  • Olive Oil – extra virgin for sautéing the veggies.
  • Onion – yellow to add loads of flavor.
  • Fennel Bulb – fresh fennel with fronds attached. While the fronds will only be used for garnish in this , they’re quite tasty in green smoothies.
  • Garlic – fresh fat garlic bulbs, minced.
  • Kale – I like Lacinato or Dinosaur Kale in this recipe, but any kale will do.
  • Vegetable Broth – a good veggie broth is key here. My preferred brand is Better than Bouillon.
  • Cannellini Beans – cooked white beans (aka white kidney beans).
  • Lemon Juice – to brighten and balance the flavors.

If you’re a fennel fan, you’re going to love my Roasted Fennel Mushroom Gratin!

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (8)

Quick Guide: How to Make Vegan White Bean and Fennel Soup

Get out your Dutch oven or large pot and wooden spoon. We’re making a rich and tasty soup with fennel! (see recipe card for details):

  • First, dice the onion and fennel and saute’ in a bit of olive oil.
  • Second, destem, chop and wash the kale, then add it to the soup pot along with minced garlic – I always add a little extra!
  • Next, pour in the veggie broth and cook the soup until it’s warmed through.
  • Last, remove from heat and stir in a squeeze of lemon juice.

Add plenty of fresh ground pepper and taste for salt. Ladle into soup bowls and share with lemon wedges and warm, crusty Sourdough Bread for sopping up all the delicious, infused broth.

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (9)

Recipe FAQs

What Part of Fennel is Used for Soup?

For this soup recipe, we’re chopping the bulb, the white part of fennel and saving the fronds for garnish.

How to Chop Fennel For Soup:

We’re chopping the fennel bulb into small, bite size pieces. First you’ll slice the fronds off at the top of the fennel bulb, discarding the tough parts of the fronds that attach it to the bulb. Keep the fronds for garnish and smoothies! Remove the brown edged, tough, outer layers of the bulb and chop off the base of the bulb. Slice the bulb into thin pieces, and then cut those pieces crosswise – like an onion.

What Does Fennel Taste Like in Soup?

Cooking fennel softens its otherwise sharp, raw flavors. Since we’re sautéing the fennel, its flavor is transformed into sweet, buttery and complex. It’s quite nice.

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (10)

Expert Tips

  • Make Ahead – this is this kind of soup that’s perfect for the work week. Its flavor improves with a little time.
  • Variation – I adapted this soup with fennel recipe from BonAppetit Magazine where they use Mustard Greens in lieu of Kale. When I can find Mustard Greens, I use them in this recipe. They are fabulous! But, they can be hard to find.
  • Garlic and Lemon – if you love these two together, you can get away with adding more in this recipe.

More Vegetarian Soup Recipes to Love

  • White Bean Cabbage and Potato Soup
  • Chickpea Noodle Soup
  • Lentil Mushroom Cabbage Roll Soup
  • Wild Rice and Mushroom Soup

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe

Total Time:30 minutes minutes

Servings:4 Servings

Calories:169kcal

Author:Traci York

A quick to pull-together cozy meal with rich flavor. This hearty and nourishing White Bean Fennel Soup Recipe is so satisfying on its own with a thick slice of crusty Multigrain Sourdough Bread or top with Sourdough Croutons to make a cozy meal. This recipe is vegetarian, vegan and gluten free.

Ingredients

  • 1 tablespoon Extra Virgin Olive Oil
  • 1 cup (100 grams) Yellow Onion diced, about one medium
  • 1 cup (135 grams) Fennel Bulb* (see note) fronds trimmed and reserved, bulb sliced thin and chopped, about one large fennel
  • 3 teaspoons Garlic minced, about 4-5 medium cloves
  • 1/2 pound (215 grams) Bunch Lacinato or Dinosaur Kale stems removed, and chopped into bite size pieces (about 1 big bunch)
  • 2 cups (15 ounces / 425 grams) Cannellini Beans (aka white kidney beans) cooked, or one can, rinsed and drained
  • 4 cups (875 grams) Vegetable Broth ** (see note)
  • 1 cup (237 grams) Water adjust up if a souper soup is desired
  • 2 Lemons
  • Sea Salt and Fresh Ground Pepper to taste

Instructions

  • In a Dutch oven or medium stock pot, add the olive oil. Heat to shimmering and stir in the onions and fennel. Cook on medium low for about 8-9 minutes, stirring occasionally or until the onions and fennel have softened.

  • Add the garlic and kale, and a pinch of sea salt. Cook on medium low until the kale is wilted, stirring a few times, about 3 minutes.

  • Add the beans, broth and water, stirring gently so the beans don’t break. Bring to a simmer, then turn to low. Cook to warm through about 5-10 minutes.

  • Finish the soup with a squeeze of half a lemon, plenty of fresh ground pepper and fine sea salt to taste. Serve with remaining lemon, cut into wedges, chopped fennel fronds and crusty Sourdough Bread or Sourdough Croutons.

Notes

*If purchasing a fennel bulb with the fronds in tact, you’ll have a lot of fennel fronds left over. In my attempt to avoid food waste, I’ve been using the fennel leaves and stalks in green smoothies, a little at a time. Their flavor is mild and they add a host of nutritional benefits otherwise missed!

**Have you tried Better Than Bullion Vegetable Base? It’s the best veggie broth in both value and flavor. Plus the glass jar is recyclable!

This recipe is adapted from Bon Appetit.

Nutrition is provided as a courtesy and is an estimate. If this information is important to you, please have it verified independently.

Serving: 1serving | Calories: 169kcal | Carbohydrates: 30g | Protein: 8g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Sodium: 1180mg | Potassium: 429mg | Fiber: 10g | Sugar: 6g | Vitamin A: 6207IU | Vitamin C: 88mg | Calcium: 237mg | Iron: 3mg

Made It? Leave a comment below! The most helpful comment may include recipe rating, feedback, any modifications and/or helping other commenters. On Instagram? Take a snap of your make and share, tagging @VanillaAndBean #VanillaAndBean!

You might also like:

Moroccan Lentil Chickpea Stew
Coconut Curried French Lentil Soup
Hearty White Bean and Cabbage Soup with Potatoes
Hearty Crock Pot Vegetarian Chili
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  1. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (17)Suzanne

    I’m making this recipe right now and the ingredient list calls for 2 lemons, but the directions only state to use the juice of 1/2 of a lemon. What do you do with the other 1.5 lemons?

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (18)Traci York

      Hi Suzanne! Use the remaining lemon to serve the soup with. I like to slice the lemon into wedges and served them on the side where they can be squeezed into the soup if desired.

      Reply

  2. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (19)Amanda

    Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (20)
    Excellent! I blended it with an immersion, added extra lemon and some hot sauce. Looks and has the mouthfeel of cream of broccoli. Next time I’ll double the beans so it’s a thicker consistency. Delicious!

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (21)Traci

      hi Amanda! Thank you for your tips, star rating and giving the recipe a go! YESssss for doubling the beans!

      Reply

  3. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (22)Janice Short

    Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (23)
    Made this for lunch today and loved it, Traci! I never had fennel in soup before and really enjoyed it. I was able to eat two bowls (could not have stopped me lol) which I would not have done if using potatoes instead fennel. Great results for something so quick and easy. I was out of kale but had a large beautiful bunch of beet greens and they were awesome delicious. Thanks for a recipe that is going into my regular rotation!

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (24)Traci

      Hi Janice! I’m super happy to read your note. HOORAY for fennel in soup! The beet greens sound absolutely delicious – what a great idea! Thank you for your note, star rating and tip!

      Reply

  4. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (25)Sarah

    Thank you for this wonderful soup! I have made this a few times and now consider it a staple in our home. I love the flavor of fennel. So that the fronds don’t go to waste, I have been using them in other recipes. Thank you so much for sharing and creating this recipe!

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (26)Traci

      Hi Sarah! SO happy to read your note. Fennel is such a tastey veggie! Aren’t the fronds so nice?

      Reply

  5. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (27)MaryAnn | The Beach House Kitchen

    Delicious combination of ingredients Traci! I’ll be adding this to my soup menu soon! Perfect with some of your delicious homemade bread!

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (28)Traci

      I hope y’all enjoy it, Mare! Rob likes this one, so, I’m thinking Mr. P would be willing :D

      Reply

  6. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (29)Bruce

    I had flu. Was planning on basic chicken noodle soup. THEN! When I was in the grocery store, fennel looked amazing. Kale looked amazing. They followed me home. So I googled and found this recipe.
    I started with chicken wings in the pressure cooker to make chicken stock as I originally planned. BUT THEN… this recipe. I used my home made chicken stock! Followed this recipe. And then… julienne ginger, the picked clean meat from the wings made earlier and the juice of a whole lemon. AMAZING!!!! OMG! JOY JOY!

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (30)Traci

      Hooray hooray! So happy to hear Bruce… and I hope you’re feeling better. Thank you for your note and sharing your tips with us!

      Reply

  7. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (31)sylvia alberta

    I’m about to harvest kale from the garden and want to stock the freezer with a variety of soups. Would this freeze well? I plan on blending it.

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (32)Traci

      Hi Sylvia! Oh that sounds great. If blending, the soup will be fine frozen. If not blended, I didn’t care for the texture post freezing. I hope this helps, and you have a beautiful harvest!

      Reply

  8. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (33)Samantha

    Hi Traci,

    I was craving soup and fennel when I stumbled across your blog and this recipe. I want to thank you so much for posting! I made this as written except I omitted the oil and added two medium yukon gold potatoes to use up leftover veggies. I currently have a sinus infection and this was exactly what I needed. Not only was it delicious but it was so easy to make! My husband usually likes more than soup for dinner so he made your beet sandwiches (https://vanillaandbean.com/roasted-beet-sauerkraut-sandwich/). I tried a bite and liked it so much he made me half a sandwich too!

    I have saved a few other recipes that I am excited to try out!

    Thanks again,

    Samantha

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (34)Traci

      Hello Samantha! Thank you so much for your note and kind words. I’m so happy you enjoyed this soup and that beet sandwich! What a fabulous combination – thank you and your hubs for giving them a go!

      Reply

  9. Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (35)Stephanie

    This was soo yummy! I added chorizo to it because my husband always needs extra to tie him over. We loved this.

    Reply

    • Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (36)Traci

      Ohhh thank you so much for your note Stephanie! You’re fast! And you made it your own, to suit your husbands cravings! That’s what I looove about cooking!

      Reply

Lemon-Garlic White Bean, Kale and Fennel Soup Recipe (2024)

FAQs

What is the thickener in a white bean soup? ›

What is the thickener in a white bean soup? In this recipe, what really thickens up the soup is the 15 oz of white beans that you are mashing and the starches from the potatoes. We aren't using cornstarch or a thickening agent in this recipe, it really doesn't need it!

When should I add kale to my soup? ›

Kale can be ready in as little as 5 to 30 minutes if you like it buttery tender. So it depends on your preference if you want to add it a few minutes before the soup is ready or a little earlier so that it has time to simmer and soften up.

Can I freeze soup with kale in it? ›

TO STORE: Leftovers will keep in your refrigerator for up to 4 days. TO REHEAT: Warm on the stovetop or in the microwave. TO FREEZE: Freeze kale soup for up to 6 months. Thaw overnight in the refrigerator before reheating.

Do beans thicken soup? ›

You can also thicken soup by puréeing it with cooked beans or lentils. White beans like cannellini beans or navy beans are especially good for puréeing. This recipe for Creamy Italian White Bean Soup is a great place to start. Puréeing hearty winter vegetables like butternut and kabocha squash will also do the trick.

What is the secret ingredient to thicken soup? ›

Add Flour Or Cornstarch

Instead, ladle a small amount of broth into a separate bowl and let it cool. Add a few tablespoons of flour or cornstarch to the bowl and whisk until it's blended smooth. Next, bring the soup to a simmer and add the mixture back to the pot. Pro tip: Don't dump in the entire mixture at once.

Is it better to thicken soup with flour or cornstarch? ›

The most classic and surefire way to thicken a broth-based soup is with a cornstarch slurry. Whisk together equal parts cornstarch (or arrowroot) and water or broth, then whisk it into the pot of soup. A good ratio to get to a pleasant thickness without your soup tasting goopy or heavy is one tablespoon.

Can you overcook kale in soup? ›

Yes, kale can become overcooked if left in the soup for too long. It is best to add kale towards the end of the cooking time to prevent it from becoming too wilted or losing its vibrant green color. Aim for a tender yet slightly crisp texture, as overcooked kale can turn mushy and affect the overall taste of your soup.

What type of kale is best for soup? ›

Russian Kale

Compared to other kale varieties, Russian kales are on the tenderer, milder, and sweeter side, making them an excellent and delicious green for salads and soups.

How do you cut the bitterness out of kale in soup? ›

Adding some spicy or sweet flavors may help tame the strong flavor of bitter kale. For example, tossing in some dried fruit helps balance the bitter with some sweet. If you eat meat, you can try adding in some sausage or bacon, perhaps to a soup or stew, to cut the bitterness.

What to do with kale before it goes bad? ›

Freezing helps you to retain the nutrition of kale while preventing food waste and making sure you always have a stash of greens on hand for easy veggie-loading! Wash and dry kale. Be sure to pat it as dry as possible so that ice doesn't form on the leaves.

Is kale the healthiest food in the world? ›

Kale is a nutrition superstar due to the amounts of vitamins A, B6, C, K, folate, fiber, carotenoids and manganese it contains. One cup of raw kale has just 20 calories.

How long does homemade kale soup last in the fridge? ›

Save some for later. This white bean and kale soup keeps well in an airtight container in the refrigerator for up to 4 days, though it will thicken as it sits. You'll likely need to thin it with a bit of water or stock when you're reheating it. For longer storage, freeze the soup for up to 3 months.

Can you overcook beans in soup? ›

So, [overcooking] certainly can take away from the flavor and make beans taste bad. But, if you overcook your beans, don't worry! Just add some seasoning (especially salt) to help mask that off-putting texture.

What is the healthiest soup thickener? ›

Consider using methods like making a roux, blending beans or legumes, using bread, adding egg yolk, pureeing vegetables, incorporating heavy cream or coconut milk, adding potato flakes or starch, or making a slurry with cornstarch or arrowroot to thicken soups without sacrificing flavor or texture.

What does cornstarch do to soup? ›

Cornstarch, or corn flour, can be used to thicken soup through its high starch content. Cornstarch is a great thickener for soup because only a little bit is needed to significantly thicken a soup, and it will not affect the flavor profile of the soup.

What can I use to thicken soup beans? ›

There are several ingredients you can add to thicken bean soup while adding flavor at the same time. Try adding tomato paste, pureed vegetables like carrots or potatoes, or even a spoonful of nut butter. These additions will enhance the thickness and taste of your soup.

What can I use to thicken ham and bean soup? ›

Step 2: Thicken the soup.

Sprinkle in flour then cook for 1 minute stirring constantly. The addition of flour to the Ham and Bean Soup will give it a nice velvety texture.

How do you make thickener for beans? ›

If your beans are still too watery after prolonged cooking and mashing, consider adding a thickener like cornstarch, all-purpose flour, or arrowroot. To do this, first, make a slurry of equal parts thickener and water, then slowly add it to your refried beans. They should thicken considerably.

What can I use instead of thickening agent in soup? ›

If you don't have cornstarch handy, flour is a similar alternative that can be used to thicken soup (for a gluten-free option, you can also use arrowroot flour). There are a few ways to incorporate flour into soup, which work to avoid clumping and the raw taste of flour.

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