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Home » Recipe Index » Soups & Salads

Rustic Lentil Soup

Published: Jan 16, 2020 · Modified: Feb 14, 2024 by Kris Longwell · This post may contain affiliate links

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Cold out? Need something to make you feel warm and cozy. Well, this soup does the trick.  

The lentils, slow-cooked with the pancetta, veggies, and stock will definitely warm you to the core. We give it a true Tuscan twist and add sweet Italian sausage, along with the pancetta. But, you can easily make this vegetarian by omitting the pork and using vegetable stock.

VIDEO ALERT: Be sure to check out the video for this recipe in the recipe card.  If you like the video, subscribe to our YouTube Channel!

A white bowl of rustic lentil soup with slices of toasted bread stacked next to it.
Rustic Tuscan Lentil Soup

HOW TO MAKE RUSTIC LENTIL SOUP

This soup is not difficult to make at all. All you need are less than a couple of hours to let the deeply flavorful stock do its work on the dried lentils, and you’ll have one of the most comforting soups you’ve ever had or made.

We love to go with green lentils, but you can go with whatever type of lentils they have at the market.

Watch us show you how easy it is to make this incredibly delicious soup!

BUILDING THE FLAVOR PROFILE

Pancetta is similar to bacon in that it is pork belly that is cured. All we can say it is loaded with flavor and is very popular in Italian cooking, especially in soups and pasta.

Once the pancetta has cooked and gotten nice and crispy, it’s time to add the mirepoix (onions, carrots, and celery). You’ll need to saute them for about 5 to 8 minutes, or until they have become soft and translucent.

The garlic and fresh herbs added to the mix help to create a foundation for this Rustic Lentil Soup that is just perfection.

Sautéed carrots and onions in a Dutch oven with a wooden spoon in it.

Next, you’ll need to add the tomato sauce and the chicken stock. Homemade stock is always the best for soups, but a good-quality purchased stock, or broth, will work just fine, too.

Bring the liquid to a boil, and then lower the heat to a simmer, and then gently add the lentils.

EXPERT TIP: You’ll need to keep an eye on the soup as it simmers for a couple of reasons, you don’t want it to start to burn on the bottom of the pan, which is why occasional stirring is necessary. Also, after about a half-hour of simmering, as the lentils absorb the liquid, the soup may become too thick. If this occurs, simply add more stock to reach the consistency you prefer.

A bowl of green lentils being dropped into a blue Dutch oven filled with chicken stock.

ITALIAN SAUSAGE ADDS DEPTH OF FLAVOR

As we discussed, this soup can absolutely be 100% vegetarian by omitting the pancetta and sausage and using vegetable stock in place of chicken stock.

But folks, we must say, the small bite-size pieces of sausage in the soup is pretty awesome.

Simply purchase Italian sausage links (sweet or hot), remove the casings, and then form little sausage balls. Cook them up in a skillet with a dash of olive oil, and you’re good to go!

A large skillet filled with small Italian sausage balls that have been browned.

To make the soup even more hearty and delicious, we add cubed russet potatoes.

Peel the potatoes and cut them into small, bite-sized cubes and then drop in them in the soup after 40 minutes of cooking.

EXPERT TIP: The smaller the potato cubes, the less amount of time they’ll need to simmer in the soup to become soft and edible. Cubes about ½-inch thick will take only about 15 minutes to become perfectly tender. Again, keep an eye on the soup, at this point, there is a good chance you’ll need to add more stock to keep the soup from becoming too thick.

Two hands dropping cubed potatoes into a Dutch oven filled with lentil soup.

RUSTIC LENTIL SOUP IS THE ULTIMATE IN COMFORT

In the last five minutes of cooking, drop in the cooked sausage balls.

This is also a good time to slice and toast some nice crusty Italian bread.

And did we mention the smell? Oh good heavens, this is the good stuff.

A large blue Dutch oven filled with rustic lentil soup with Italian sausage balls resting on the top.

This soup is wonderful on so many levels. Comforting, yes, but because lentils are loaded with so much nutritious goodness (i.e., iron, fiber, etc), this soup is good for you, too!

And did we mention how delicious it is?

Oh my! Just look at this bowl of goodness!

An antique soup bowl holding rustic lentil soup.

This soup is perfect for a chilly day, or anytime you’re in need of a good bowl of comfort.

The soup will keep in the refrigerator for up to 1 week and in the freezer for up to 2 months.

Ready to dig in?

A hand holding a spoon of lentil soup over a bowl of the soup.

Ready to make one of the most delicious soups of all time? Go for it!

And when you make Rustic Lentil Soup, be sure to take a picture, post it on Instagram, and tag @howtofeedaloon and #howtofeedaloon!

A white bowl of rustic lentil soup with slices of toasted bread stacked next to it.

Rustic Lentil Soup

Nothing will warm you up and make you smile much more than this bursting-with-flavor soup, Rustic Lentil Soup. Omit the pancetta and sausage and use veggie stock to make it 100% vegetarian.
5 from 7 votes
Print Pin Rate
Course: Soup
Cuisine: Italian
Prep Time: 20 minutes minutes
Cook Time: 1 hour hour
Total Time: 1 hour hour 20 minutes minutes
Servings: 10 people
Calories: 300kcal
Author: Kris Longwell

Video

Equipment

  • Large Dutch oven, or soup pot

Ingredients

  • 1 tablespoon olive oil
  • 2 oz pancetta cubed
  • 2 cloves garlic minced
  • 1 cup yellow onion chopped
  • 1 cup carrots peeled and sliced, about 2 medium carrots
  • 1 cup celery chopped, about 2 stalks
  • ½ teaspoon fresh thyme
  • ½ teaspoon fresh oregano chopped
  • ¼ teaspoon red pepper flakes
  • ¼ teaspoon fresh ground black pepper
  • 1 teaspoon salt
  • 1 cup tomato sauce
  • 6 cups chicken stock plus more, if needed
  • 2 fresh bay leaves
  • 1½ cups lentils rinsed and drained
  • 1 potato peeled and diced
  • 2 Italian sausage sweet or hot

Instructions

  • In a large pot, heat the olive oil over medium heat. Add the pancetta and cook until crisp, about 6 to 8 minutes.
  • Add the carrots, celery, and onions and cook, stirring occasionally, until soft and translucent, about 7 to 10 minutes.
  • Add in the garlic and cook for another 30 seconds.
  • Add the thyme, oregano, red pepper flakes, pepper, and salt and cook, stirring frequently, for another minute.
  • Add in the tomato sauce and then the chicken stock. Turn the heat to high and bring the liquid to a boil.
  • Reduce heat and bring to a steady simmer. Stir in the lentils and bay leaves, partially cover the pot, and let simmer for 40 minutes, stirring occasionally to prevent burning on the bottom. Adjusting the heat, as necessary.
  • Stir the soup, and if too thick, add more stock. Add the potatoes and cook for another 15 minutes, or until they are tender.
  • Meanwhile, remove the casings from the sausage links and form small meatballs. Cook them in a medium saucepan over medium heat with a splash of olive oil until cooked and nicely browned
  • Add the cooked sausage to the soup.
  • Taste the soup and add salt, if necessary. Remove the bay leaves.
  • Serve with toasted, crusty Italian bread.

Notes

Green lentils work well with this soup, but so do red or brown.  Whatever is available at your supermarket will work.  You will find dried lentils in the dried beans section of the grocery store.
If using dried herbs, use half the amount called for in the recipe.
Keep extra stock on hand, in case the soup gets thicker than desired.  Simply add the stock until you reach the desired consistency.
Omit the pancetta and sausage, and use vegetable stock/broth, in place of the chicken stock, to make this soup vegetarian.
The soup will keep in the refrigerator for up to 1 week and freezes beautifully for up to 2 months. 

Nutrition

Calories: 300kcal | Carbohydrates: 30g | Protein: 16g | Fat: 7g | Saturated Fat: 2g | Cholesterol: 25mg | Sodium: 791mg | Potassium: 754mg | Fiber: 10g | Sugar: 5g | Vitamin A: 2316IU | Vitamin C: 9mg | Calcium: 47mg | Iron: 4mg
Tried this recipe? Take a Picture!Mention @HowToFeedALoon or tag #HowToFeedALoon!

POST UPDATE: This recipe was originally published in February 2014, but was updated with improved tweaks along with new photography, tips, and a fabulous new video in January 2020!

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Comments

  1. Diane says

    May 12, 2023 at 5:35 pm

    5 stars
    Hi guys! Made this today using some homemade stock that I had frozen from your recipe, of course. This was DELISH. I omitted the potatoes because I added some ditalini noodles that I just can’t resist in any soup. I also added some sweet Campari tomatoes because they needed to get used up before the trash. Seasonings were spot on with just a little bite with hot sausage. Way to go bringing us another winner soup. This is right up there with your tomato basil. I can’t wait for my staff to have it for lunch on Monday. Pretty soon I’ll be flying to make recipes with you guys! Kris, Loon and D show LOL

    Reply
    • Kris Longwell says

      May 15, 2023 at 11:57 am

      Hi Diane! You are so amazing and you have one lucky staff! They must be the happiest employees in the world! You modifications to the lentil soup sound so good! You are an awesome cook! Thanks as always for sharing…and keep on cookin’!!!! xoxo Kris & Wesley

      Reply
  2. Holly says

    January 15, 2023 at 9:33 pm

    5 stars
    Delicious! I made this with homemade chicken stock (your recipe) but no bacon or sausage. The soup was so warming and right for a cold and rainy Sunday. We’ll have left-overs on Thursday, which is our busy day with little time to cook. Thanks for all your delish recipes.

    Reply
    • Kris Longwell says

      January 16, 2023 at 12:45 pm

      Hi Holly! We are THRILLED you made the lentil soup AND the chicken stock! You ROCK!! Isn’t that the most heart-warming soup? Thank you so so much for sharing and for the GREAT review. That means the world to us!! xoxo Kris & Wesley

      Reply
  3. Paula says

    August 23, 2022 at 11:16 am

    5 stars
    This is hands down our favorite go to meal on a cold day… I have perfected this recipe and love all the rich wonderful flavor. My husband tells me that this recipe is almost better than his moms Italian lentil soup that he remembers as a kid. Thanks so much for your recipes I need to try more of them. Fabulous recipe and delicious soup!

    Reply
    • Kris Longwell says

      August 23, 2022 at 11:24 am

      Thank you so so much, Paula! We are thrilled you are enjoying the lentil soup recipe! And it’s hard to believe, but it won’t be long to those cold days are here and we’ll be turning on the stove to make soup!! Please give our best to your husband, too! That means the world to us!!! All the best, Kris & Wesley

      Reply
      • Diane says

        April 04, 2025 at 11:42 am

        5 stars
        Hi guys! I just made this again but with ground turkey and vegetable stock. It was DELISH!! Trying with some weight loss finally! Made a gigantic pot of it. Probably quadrupled it at least since it freezes well. This soup is really tied with your roasted tomato basil soup for my favorites that I make often. This is really a great soup to make and heat up for a quick weeknight meal for busy days at work. It’s super filling even on its own without bread. Thank you both for continuing to make me laugh and putting out amazing high quality recipes that taste so darn good. And, as always, thanks for making me look like a much better cook than I really am. Take care, guys.

      • Kris Longwell says

        April 07, 2025 at 4:46 pm

        Diane! We LOVE hearing from you! Sounds like you made a perfect vat of soup! And healthy, too!! That is fantastic! You are such a great cook!!! We are thrilled to help out in any way we can! Thank you as always for your support and staying in touch! It means so much to us!!!! Have a GREAT week!!

  4. Terry Dunham says

    February 15, 2022 at 10:53 am

    This is absolutely the best lentil soup. The only additional ingredient that I used was a shot of cream sherry. It was simply amazing!!! Love this soup!!!

    Reply
  5. Paula says

    December 12, 2020 at 8:19 pm

    5 stars
    This is literally our favorite soup bye bye chicken noodle… we do substitute regular bacon when we can’t get pancetta but all other ingredients are always in the pantry… thank you so much for this recipe it’s love in a pot!

    Reply
    • Kris Longwell says

      December 14, 2020 at 4:42 pm

      Hi Paula!! Woo hoo!! You just made our week!! We love our lentil soup and we are thrilled that you had such wonderful results!!! And thank you so much for letting us know and for the GREAT review! That means the world to us!!! xoxo Kris & Wesley

      Reply
  6. Darlene says

    October 14, 2020 at 8:11 pm

    5 stars
    Ok guys,
    I am literally eating a big bowl of this amazing lentil soup while I’m typing this review.
    I couldn’t wait to tell you . Best lentil soup we have ever had! I used Hillshire Farms smoked sausage instead of Italian sausage because my husband prefers it. Just sliced it, browned it and threw it in. Served it with buttered sourdough bread cooked under the broiler, so crunchy and good. The only downside is it makes our 3 mini doxies, Daisy, Abby and Ushi, crazy the whole time it’s cooking because it smells so fabulous. My heart goes out to Eb & Flo! Would love to see more pics of them.
    So thank you, thank you, thank you again for bringing much happiness into our lives. Tomorrow it’s Chicken Enchiladas Verde, yaaayyyy! Hasta luego mi amigos

    Reply
    • Kris Longwell says

      October 15, 2020 at 3:58 pm

      Darlene!! You made us get all misty!! We are THRILLED you enjoyed the lentil soup, and your additions with the crunchy sourdough bread and sausage are making us drool!! And Eb and Flo send their love! We’ll make sure to include more pics of them. They are always very nearby, especially when we’re cooking!! And let us know how the enchiladas turn out! They are one of our all-time favorite TexMex recipes!! All the very best, Kris & Wesley

      Reply
  7. no carb diet says

    March 28, 2020 at 2:46 am

    Would love to perpetually get updated outstanding webb blog!

    Reply
  8. Salina says

    January 18, 2020 at 5:34 am

    5 stars
    I just love you all!!! I also have been experimenting with lots of different beans lately because I have issues eating enough meat. It’s crazy that my stomach reject most meat but it loves beans! Anyway I already have this 5 stars and haven’t even made it yet but it is next on my list this week! Your recipes never disappoint me! And everyone tells me I am a great cook me I tweak most recipes but never have to tweak yours! They are right on the money for me as is! Thanks for the great recipe and video!

    Reply
    • Linda Porter says

      January 21, 2020 at 2:10 pm

      Can you tell me how to do this in an instant pot? I would love to make it in mine.

      Reply
  9. Patricia L Attanasio-Hallock says

    September 30, 2019 at 5:47 pm

    Awesome site. Love your Rustic Tuscan Lentil Soup recipe it was the best.

    Reply
5 from 7 votes

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