There are certain soup recipes I make year after year, and this Italian lentil soup recipe with sausage and pasta is one of them.

It’s the kind of hearty soup I crave on cold winter days, especially around New Year’s when lentils feel like both comfort food and good luck. It’s filling without being heavy, packed with nutritious ingredients, and somehow tastes even better the next day.

This is not a fussy recipe. It’s a practical, deeply flavorful bowl of lentil soup that comes together in one large pot.

And the best part is that it will feed you and your family well for several days.

It’s the perfect way to turn simple pantry staples into a rich, savory meal that feels thoughtful and satisfying.

If you’ve ever ordered zuppa di lenticchie at an Italian restaurant and wondered how to recreate something similar at home, this is my go-to version.

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Why I Love Italian Lentil Soup with Sausage and Pasta

This soup hits that sweet spot between comforting and nourishing. Lentils bring substance, sausage adds depth, pasta gives it body, and the broth ties everything together.

It’s also incredibly flexible. You can make it on the stovetop, in a Dutch oven, in a slow cooker, or even in an Instant Pot if you’re short on time.

You can make a vegan version using vegetable broth, or lean into the richness with spicy Italian sausage.

Most importantly, it’s a soup that feels intentional. The kind you make once and then look forward to eating again the next time.

Choosing Your Lentils

Lentils are the base of this dish, so choosing the right type matters.

I typically use green lentils or brown lentils because they hold their shape well and give the soup structure. French lentils or Puy lentils are also great options if you want a slightly firmer texture.

Red lentils cook faster but break down more, so I usually avoid them here unless I want a little thinner consistency.

Whatever you choose, lentils are easy to find at any grocery store and cook relatively quickly compared to dried beans.

Sausage or No Sausage?

For this version, I use spicy Italian sausage, sometimes even Carrabba’s spicy sausage if I can find it. It adds a deep savory flavor and balances the earthiness of the lentils.

That said, this soup is easy to adapt. If you’re making a vegan version, skip the sausage entirely and use vegetable broth instead of chicken stock. You can add extra Italian seasoning and tomato paste to build flavor.

Both versions work beautifully.

Ingredients and Why They Matter

Before getting into the steps, here’s a walk through of the ingredients and why each one earns a place in this pot.

Olive oil

This is where flavor starts. It helps build the base of the soup.

Spicy Italian sausage

Adds richness and depth. Use a slotted spoon to remove excess fat if needed.

Onion, carrot, and celery

The classic foundation for Italian soup. They bring balance and natural sweetness.

Garlic

Essential for savory flavor.

Tomato paste

Adds richness and a slightly concentrated tomato note.

Fresh tomatoes or San Marzano tomatoes

They brighten the soup and round out the broth.

Green lentils, brown lentils, or French lentils

Provide structure and protein.

Chicken broth or chicken stock

Creates a fuller, richer flavor. Vegetable broth works for a vegan version.

Bay leaf or bay leaves

Adds subtle depth. Remove before serving.

Italian seasoning

Pulls everything together.

Pasta

Small shapes work best. It turns this into a true hearty lentil soup.

Salt and pepper

Season gradually.

Water

Sometimes a few tablespoons of water help loosen things if the soup thickens too much.

Building the Soup Step by Step

I start by heating olive oil over medium heat in a large pot or Dutch oven. Once warm, I add the sausage and cook it until browned, breaking it up as it cooks. When it’s done, I remove it with a slotted spoon and set it aside.

In the same pot, I add onion, carrot, and celery and cook until softened. This takes a bit of time, but it’s worth it. You want everything fragrant and lightly golden.

Next comes garlic and tomato paste. I let the tomato paste cook for a couple of minutes to deepen its flavor.

Then I add the lentils, fresh tomatoes or San Marzano tomatoes, bay leaf, Italian seasoning, and chicken broth.

I bring everything to a gentle simmer and let it cook until the lentils are tender. This usually takes a bit of time, depending on the type of lentils you use.

Once the lentils are tender, I add the sausage back to the pot and stir in the pasta. The pasta only needs 2–3 minutes in simmering soup to cook through.

If the soup feels too thick, I add a little water or broth to loosen it. Some people prefer it thicker, some a little thinner. This is personal.

Other Cooking Methods

This soup adapts well to different kitchens.

Slow cooker

Brown the sausage first, then add everything except the pasta. Cook on low for several hours, add pasta at the end.

Instant Pot

Use sauté mode for the sausage and vegetables, then pressure cook the lentils. Add pasta after releasing pressure.

Both methods still give you a delicious soup.

Tips for the Best Lentil Soup

Rinse lentils before using.
Add pasta at the end so it doesn’t overcook.
Taste and adjust seasoning as it cooks.
This soup thickens as it sits. Add broth next time you reheat it.
Store leftovers in an airtight container in the fridge.

Serving and Storing

I love serving this with crusty bread and a drizzle of olive oil. It’s the perfect way to turn a simple bowl of lentil soup into a full meal.

This soup keeps well for 4–5 days in the fridge and tastes even better the next day once the flavors have had time to develop. Let it cool to room temperature before storing.

Frequently Asked Questions (FAQs)

Q: Can I make this Italian lentil soup recipe ahead of time?

A: Yes. It’s actually better the next day.

Q: Can I freeze lentil soup?

A: Yes, though the pasta may soften slightly when reheated.

Q: What lentils work best for this soup?

A: Green lentils, brown lentils, French lentils, or Puy lentils all work well.

Q: Can I make a vegan version?

A: Absolutely. Skip the sausage and use vegetable broth.

Q: Is this soup good for New Year’s?

A: Yes. Lentils are traditionally served for New Year’s for good luck.

Q: How long does this soup last in the fridge?

A: Stored in an airtight container, it lasts 4–5 days.

Italian Lentil Soup Recipe with Sausage and Pasta