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Mom’s lentil and Italian sausage soup: A filling soup of green lentils and Italian sausage (mild or spicy).

Originally Posted: Jan. 28, 2025

Total Time: 15 minutes prep, 45 – 60 minutes total

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Intro

Another of my mom’s recipes from when I was growing up, this is a healthy and hearty soup for the cold months. It’s so ingrained in my memories that just tasting another dish with Italian sausage (or even fennel) makes me crave this soup.

Lentil soups are found worldwide, being a favorite staple for many cultures. Lentils

If you really like sausage, I would also recommend my Pumpkin-Sausage Soup.


Ingredients

  • 1 lb. Lentils, dry, packaged
  • 1 lb. Italian Sausage (sweet or spicy)
  • 1 White Onion, peeled and diced
  • 3 Roma Tomatoes, peeled and chopped (or 1 can of chopped tomatoes)
  • 2 – 3 cloves Garlic
  • 2 tsp Oregano
  • 1 tsp Fennel Seed, optional (Italian sausage usually already has fennel seed in it, but if you want extra fennel flavor, I would add this)
  • 2 Bay Leaves
  • 32oz Chicken Stock
  • Water (or stock) to cover lentils by 1in.
    • Plus more water as it cooks, if needed
    • Note: Just using water and a bouillon powder or a bouillon paste like Better Than Bouillon is a good way to accomplish this step
  • Oil, as needed (maybe 1 Tbsp)
  • Salt and pepper, to taste
All the necessary ingredients. I chose to make this batch with Hot Italian Sausage.
Here I chose a white onion, three Roma tomatoes, and several cloves of lacto-fermented garlic that I made.
Dice the onions and tomatoes, and mince the garlic.

Equipment

  • Large Pot
  • Skillet
An enameled Dutch oven like this one is one of my favorite ways to make soup.

Written Instructions

Total Time: 15 minutes prep, 45 – 60 minutes total

Rinse the lentils and make sure there are no small rocks.

Start by rinsing lentils and removing any rocks (an annoying but necessary step in some lentils). Next, add to a large pot along with stock, water, or stock/water mixture until the lentils are covered by about 1 inch. Water and bouillon powder or bouillon paste is a good way to accomplish this.

I used a mixture of pre-made broth, water, and better than bouillon.

In a skillet, heat about 1 Tbsp of oil, and then sauté the diced onion, chopped tomatoes, and garlic, adding the oregano as well. You can also add the optional fennel seed if you like, though most Italian sausage will already have fennel seed as part of the flavoring. Sauté until the onions are softened, then add the tomatoes and onions to the pot with the lentils.

Saute the onions, garlic, and tomatoes with the herbs.
Once sauteed, add to the pot with the lentils.

Add sausage to the skillet and cook until browned. Once this is done, add the contents of the skillet to the pot with the lentils.

Add browned sausage to the pot, then add two bay leaves.

Bring soup to a boil, then reduce to a simmer, partially covering the pot with the lid. Simmer the soup for 30 to 45 minutes, until the lentils are soft.

Once finished, add salt and freshly ground pepper to taste and stir that in. Serve with crusty bread if you like.

A finished bowl, about to be enjoyed.

Finished lentil and Italian sausage soup

Lentil & Italian Sausage Soup

Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Main Course, Soup
Cuisine Italian
Servings 8

Equipment

  • 1 Stock Pot or Dutch Oven
  • 1 Skillet

Ingredients
  

Main Ingredients

  • 1 lb. Lentils dry, packaged
  • 1 lb. Italian Sausage mild or spicy
  • 1 White Onion, peeled and diced
  • 3 Roma Tomatoes, peeled and diced (or 1 can chopped tomatoes)
  • 2 – 3 cloves Garlic
  • 2 tsp Oregano dried
  • 1 tsp Fennel Seed optional, but I definitely suggest this for spicy sausage
  • 2 Bay Leaves

Liquids

  • 32 oz Chicken Stock
  • Water (or stock), enough to cover lentils by one inch
  • Plus more water as it cooks down
  • Note: Just using water and a bouillon powder or a bouillon paste like Better Than Bouillon is a good way to accomplish this step
  • Note: I think I wound up adding 5 cups of liquid in addition to the initial 32oz, so 32oz + 40oz = 72oz of liquid total

Other Ingredients

  • 1 Tbsp Oil as needed, for sauteing ingredients
  • Salt & Pepper to taste

Instructions
 

  • Rinse lentils and remove any small rocks, if necessary.
  • Add lentils to a large pot, then fill with either chicken stock, water, or a mixture of the two until the liquid comes to about 1 inch above the lentils.  I find that water and Better Then Bouillon is an easy way to accomplish this.
    Note: By the end of the cooking process, I think I had added a total of 72oz (or 9 cups, or 2.12L) of liquid to the pot. Add as you go though; lentils might have different absorption rates, especially if you've soaked them beforehand.
  • In a skillet, heat some oil and add diced onion, chopped tomatoes, and garlic.  Add the oregano and optional fennel now as well, then cook until onions are softened. Add to pot.
  • Add Italian sausage to skillet and cook until browned. Add to pot.
  • Once all ingredients have been added to the pot, bring to a boil and reduce to a simmer.
  • Simmer for 30 to 45 minutes, until the lentils are soft.
  • Add salt and freshly ground pepper to taste, then stir it all into the soup.
  • Serve, perhaps with some crusty bread on the side.
Keyword Italian, lentils, Mediterranean, soup

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