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French Lentil and Mushroom Soup

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This simple French Lentil and Mushroom Soup recipe is simmered with a cozy blend of veggies, herbs and greens. It’s healthy yet hearty, naturally vegan and gluten-free, and total French-inspired comfort food.

French Lentil and Mushroom Soup

Anyone else “traveling” vicariously through your cooking lately?

Memories have been popping up on my phone the past few weeks from our trip to Provence, France a year ago when my husband’s and my parents all came over to Europe to visit us. And seeing photos of all of those beautiful countrysides, narrow cobblestoned streets, charming cottages, and dreamy local markets overflowing with fresh flowers, produce, breads, cheeses and wines has me feeling some major wanderlust again. I’m so, so ready for the time to come when we can all safely travel again!!

Sigh, I know it’s still going to be awhile. So in the meantime, at least, Barclay and I have been re-living some of our favorite past adventures and dreaming about future trips to come through our meals. And I have to say that this cozy French Lentil and Mushroom Soup recipe had us feeling all of those Provencal fall vibes again in the most delicious of ways. ♡

This lovely soup was inspired by our trips to the outdoor markets around Aix-en-Provence, where local mushrooms, leeks, greens and herbs were all proudly in season this time of year. When simmered together with those beautiful marbled French lentils (my favorite type of lentils to use in soup) and finished with a splash of balsamic, they combine to make a simple yet wonderfully satisfying meal that we have been enjoying on repeat lately. I intentionally wrote the recipe here to make a fairly large batch, since the leftovers keep beautifully for easy lunches and dinners later in the week. And the recipe itself also happens to be naturally gluten-free, vegan, and packed with good-for-you-protein, making it the perfect healthier counterpoint to some of the more indulgent comfort foods we’ve been enjoying this time of year.

So if you could also use a bit of delicious taste of France in your life right now, gather up these ingredients and let’s make a steaming pot of French lentil soup together.

French Lentils (Lentils de Puy)

French Lentil and Mushroom Soup Ingredients:

Before we get to the recipe below, here is a quick overview of the ingredients that you will need to make this French lentil and mushroom soup recipe:

  • Leeks: Leeks always remind me of our time in France and taste so lovely in this soup! If you are new to working with leeks, here is a quick video tutorial for how to select, cut and clean leeks. (It’s quite easy!)  Or if you don’t have a chance to pick up leeks at the store, you could alternately just dice one large yellow onion and add it to the soup instead.
  • Celery: Which we will thinly slice and sauté along with the leeks.
  • Mushrooms: I recommend adding lots of mushrooms to this soup — like, at least 1 pound. Or if you really love mushrooms, you could add even more. ♡  I opted for baby bella mushrooms (also called creminis), but white button mushrooms, shiitakes, wild mushrooms, or a mix of any different varieties of mushrooms would work here.
  • Garlic: Because the seasonings for this soup are so simple, I recommend going big on the garlic here. I used five large garlic cloves, but feel free to use more or less to taste.
  • White wine: I used a very generous pour of dry white wine to deglaze the pan, which also adds some rich flavor to the broth. You could also use dry red wine instead. Or if you prefer not to cook with alcohol, just add in some extra stock (plus maybe a bit more balsamic).
  • Veggie stock: Either veggie stock or chicken stock will do here. And again, since the seasonings are so simple for this soup, I recommend purchasing some good-quality stock.
  • French lentils (or lentils de Puy): Fun fact — these are the same variety of lentils, but French lentils are technically grown in North America, while lentils de Puy are grown in France. Whichever you choose, I love using these marbled lentils in this soup because they have a deliciously earthy and peppery flavor, they hold their shape when cooked, and retain a nice firm texture in this soup. That said, if you can’t get your hands on French lentils, you could easily substitute brown or green lentils instead.
  • Herbs: I kept things simple by just adding lots of fresh thyme and bay leaves to season this soup (along with salt and black pepper). But the herbs in this soup are quite flexible. Rosemary, tarragon, and/or herbs de Provence would all taste delicious too!
  • Greens: I happened to have baby spinach in the fridge, so added a few large handfuls to wilt down into the soup just before serving. But chopped fresh kale or collard greens would be delicious options too. (I also sprinkled some microgreens on top of the bowls before serving, which looked lovely!)
  • Balsamic vinegar: And finally, I highly recommend adding a drizzle of balsamic vinegar to the soup just before serving for a final burst of flavor. (A tip I learned from Bon Appetitmerci!)  You can either add the balsamic to the large stockpot or drizzle some over each individual bowl of soup just before serving. Delicious!

French Lentil and Mushroom Soup in Dutch Oven

Possible Recipe Variations:

This simple French lentil and mushroom soup recipe is quite flexible, so feel free to customize the ingredients here however you might like. For example, you could…

  • Add bacon or pancetta: If I wasn’t making this soup vegetarian, I would have definitely added some diced bacon or pancetta (and sautéed the veggies in its leftover grease) to add some extra flavor and protein to this soup. It would be delicious!
  • Add tomatoes (or tomato paste): Feel free to also add in a can of diced tomatoes or a tablespoon (or two) of tomato paste to add some tomato flavor to this lentil soup.
  • Add potatoes: You could also add in some diced potatoes to make this a bit more hearty.
  • Add cheese: If you happen to have a block of Parmesan on hand, some freshly-crated cheese would taste delicious sprinkled on top of each serving.
  • Purée the soup: Feel free to also use an immersion blender (or you could transfer the soup in small batches to a traditional blender) to purée part or all of this recipe to make the broth a bit thicker.
  • Omit the wine: If you prefer not to cook with alcohol, just add in a bit of extra stock plus an extra small drizzle of balsamic vinegar.

French Lentil Soup with Mushrooms and Spinach in Ladle

More Favorite Lentil Soup Recipes:

Looking for more lentil soup recipes to love? Here are a few of my faves:

French Lentil and Mushroom Soup Recipe in Bowls

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French Lentil and Mushroom Soup in Dutch Oven

French Lentil and Mushroom Soup

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 19 reviews
  • Author: Ali
  • Prep Time: 15 mins
  • Cook Time: 45 mins
  • Total Time: 1 hour
  • Yield: 6 to 8 servings 1x


This simple French Lentil and Mushroom Soup recipe is simmered with a cozy blend of veggies, herbs and greens.  It’s healthy yet hearty, naturally vegan and gluten-free, and total French-inspired comfort food.




  1. Sauté the veggies. Heat the olive oil in a large stockpot over medium-high heat.  Add the leeks, celery, mushrooms, and sauté for 6-8 minutes, stirring occasionally.  Add the garlic and sauté for 2 minutes, stirring occasionally.  Pour in the white wine and deglaze the pan by using a wooden spoon to gently lift up any brown bits that have stuck to the bottom of the pan.
  2. Simmer. Add in the vegetable stock, thyme and bay leaves and stir to combine.  Continue cooking until the soup reaches a simmer.  Add in the lentils and stir to combine.  Then reduce heat to medium-low, cover, and simmer for 30 minutes or until the lentils are tender, checking back occasionally to stir the soup so that the lentils do not stick to the bottom of the pot.
  3. Season.  Remove and discard the thyme sprigs and bay leaves.  Stir in the spinach and balsamic until the spinach begins to wilt.  Then give the soup a taste and season with however much salt, black pepper, and/or extra balsamic you think is needed.
  4. Serve. Serve the soup warm,* garnished with an extra crack of black pepper (I also sprinkled some microgreens on top of mine), and enjoy!


Prepping the leeks: Leeks can often have dirt hiding between their inner layers. So I recommend first trimming off and discarding the dark green parts and the ends of each leek.  Then carefully slice the leeks in half lengthwise, slice each half into lots of thin half-moons, transfer the chopped leeks to a strainer and rinse with cold water (while tossing the leeks with your fingers to uncover any dirt), and drain.

Herb options: I recommend adding in lots and lots of fresh thyme to this recipe.  But you could use a few teaspoons (add to taste) of dried thyme instead, if that’s what you have on hand.  Or rosemary, tarragon, and/or herbs de Provence seasoning would be delicious in this recipe too.

A note about broth: This soup will continue to soak up more broth the longer that it sits in a hot pot.  So if needed, feel free to add in some extra stock and seasonings to increase the amount of broth.

Storage instructions: Leftover soup can be cooled to room temperature and then transferred to food storage containers, then either stored in the refrigerator for up to 3 days or frozen for up to 3 months.

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28 comments on “French Lentil and Mushroom Soup”

  1. That looks so great!!!

  2. This recipe sounds amazing…I am new to your blog…Everything looks wonderful. Where did you stay in France? I’m going to be making this Lentil soup….
    Thank you

  3. This looks great! At my store I can only get gigantic (over a foot long, 1+lb each) or tiny leeks. I have no idea what is usual size. Can you give an approximate weight?

    • Ok, so I had some mushrooms that needed to be used ASAP and I didn’t have French lentils or leeks or greens- so I used brown lentils and a regular onion to make a half batch. I know that is far from the recipe but leads me to the most important question. WHY HAVE I NEVER FINISHED SOUP WITH BALSAMIC BEFORE?!? That made my very stripped down version of this soup totally amazing. I can’t wait to do something similar again!!!

  4. This was so beautifully flavorful, especially for such a simple soup! It’s been cold here lately and I just needed a warm, comforting but healthy meal to fill my kitchen with nice earthy aromas and my belly with some quality vegetables. This hit the spot! I had it with a biscuit and it was perfect!

  5. Thank you for sharing that tasty and healthy food recipe.

  6. Oh my gosh, my husband and I are huge fans of soup and I couldn’t wait to make this after I saw your post on Instagram. This lived up to my expectations and it was so easy to make. I grated a little parmesan cheese on top. Absolutely delicious!

    • This is the best lentil soup recipe I’ve tried– and I’ve tried many. We also love your grapefruit margarita recipe–it’s our Saturday happy hour drink during the summer. Beautiful blog with great recipes. Thank you!

  7. Looks delicious! Can you use beef stock? Or would that change the flavor profile too much?

  8. Delicious. I took one of your suggestions and fried bacon up in the pot first and set it aside to use as a topping. I cookied the veggies in some of the bacon grease. Sooo good. Served with bacon bits and shredded cheddar on top. Side of crusty bread to dip.

  9. This is an amazing and flavorful soup! Made exactly as the recipe indicated. Will definitely make it again! Also want to try some of the various variations you suggested! Lots of options!

  10. This soup is delicious! I made it exactly as the recipe indicated! It was a hit with my family and is definitely going to made many more times! Thank you sooo much! Highly recommend!

  11. this was so easy to make and absolutely delicious. I did add a little crushed red pepper flakes for a little more zip.

  12. One of the best lentil soups we ever made. Has a nice rich flavor and the lentils don’t get mushy.

  13. Hi Ali! This soup looks delicious and I can’t wait to make it – do you think it could be done in your instant pot as well? If so, how long do you recommend pressure cooking it for?

  14. More soup recipes pls, I would like a creamy mashroom soup recipe the above reciepe is super thanks

  15. This is a reply to Artie, who says his market carries only tiny or giant-sized leeks: The true leeks are giant-sized. Of those, select the smallest ones available because they will be more tender. Remember you don’t use the dark-green ends; they are inedible no matter how long you cook them. Discard them or wash thoroughly and add them to your stock pot.

    • I don’t know what unusual breed of leeks you have but I have never, ever discarded the dark green ends of leeks – they are 100% edible and full of flavour. The leek is our national flower in Wales, so I know what I’m talking about!

  16. What can I substitute the lentils for? I had a bad reaction to them and may have an allergy.
    Thank you,

  17. This soup is amazing! I was feeling lazy so I used my instant pot. I used the sauté setting and then cooked on high pressure for 10 min and allowed to sit for 5 minutes before manually releasing and it turned out amazing! Will definitely make this again.

  18. Very tasty :)
    Had green lentils laying around so that’s what I used and added bacon in the beginning. Also not a fan of spinach so subbed baby bok choy in the last 5 minutes of simmering along with some red pepper flakes :)

  19. This is the best lentil soup recipe I’ve tried– and I’ve tried many. We also love your grapefruit margarita recipe–it’s our Saturday happy hour drink during the summer. Beautiful blog with great recipes. Thank you!

  20. This soup was divine! Followed the recipe to the letter and used homemade chicken broth. My husband said this was the best lentil dish I’ve ever made! I’m wondering if the French lentils are what made the difference because they don’t get mushy like brown lentils. Either way, will be adding to the regular rotation.

  21. Had a lovely mushroom soup at a local restaurant and wanted to make it for ourselves. This read like it would do the trick and it did just that. The only difference I had was using Better Than Bullion Vegetable for the stock mix. There was so much moisture in the vegetables, I never got any brown bits for deglazing. That didn’t seem to matter as far as flavor goes. This is a very hearty and flavorful soup; perfect on a cold day.

  22. I had really been feeling sick and we just had a blizzard come through so hadn’t been to the store so didn’t have celery or the greens but I did put wine in to add to the flavor and I used halal chicken bouillon cubes and lots of mushrooms and just one cup of lentils. I sort of made a half recipe I guess you’d call it lots of garlic and I used red onion I just used what I had. Topped it off with balsamic vinegar a little bit of cilantro and parmesan homemade croutons. I put on top it was very tasty and soothing to my stomach.

  23. Excellent soup. I highly recommend using mushroom broth, if available. Tomato (either tomato paste or diced) is a nice addition as well.