Description

This Easy One-pot Lentil Kielbasa Soup is a hearty and comforting meal perfect for chillier days. Packed with flavorful kielbasa, nutritious lentils, and vibrant vegetables like broccoli rabe, carrots, and celery, this soup simmers all the ingredients together in a single pot, bringing out deep, savory flavors while keeping cleanup minimal. It’s a satisfying, protein-rich dish that balances smoky sausage with tender lentils and fresh produce.

Ingredients

Soup Ingredients

2 tablespoons extra-virgin olive oil
12 ounces kielbasa, sliced
2 celery stalks, sliced
2 medium carrots, chopped
1 small onion, chopped
3 garlic cloves, sliced
1 cup French or green lentils
1 (15-ounce) can crushed tomatoes
6 cups chicken broth
Kosher salt, to taste
Freshly ground black pepper, to taste
2 heads broccoli rabe, chopped

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Instructions

Brown the Kielbasa: Heat the extra-virgin olive oil in a large pot over medium heat. Add the sliced kielbasa and cook, flipping once, until browned on both sides, about 7 to 9 minutes. This step renders the sausage fat and develops a smoky flavor. Remove the kielbasa from the pot and transfer to a plate.
Sauté Vegetables: In the same pot, add the sliced celery, chopped carrots, chopped onion, and sliced garlic. Cook over medium heat, stirring occasionally, until the vegetables are softened and fragrant, approximately 8 to 10 minutes. This builds a flavorful base for the soup.
Add Lentils and Liquids: Add the lentils, crushed tomatoes, chicken broth, browned kielbasa, and season with 1 teaspoon of kosher salt and 1 teaspoon of freshly ground black pepper. Increase the heat and bring the mixture to a boil to kickstart the cooking of the lentils.
Simmer the Soup: Once boiling, reduce the heat to low and let the soup simmer gently, stirring occasionally to prevent sticking. Cook until the lentils are tender, which should take about 30 to 35 minutes. This slow simmer melds all the flavors beautifully as the lentils cook through.
Finish with Broccoli Rabe and Serve: Stir in the chopped broccoli rabe and allow it to wilt for a few minutes in the hot soup before serving. The broccoli rabe adds a slightly bitter, fresh note that balances the smoky sausage and earthy lentils. Serve hot or refrigerate for up to three days.

Notes

You can substitute chicken broth with vegetable broth if a milder flavor or vegetarian adaptation is desired, but note that kielbasa is typically not vegetarian.
If you prefer a spicier kick, add crushed red pepper flakes when sautéing the vegetables.
Check lentils halfway through cooking and add additional broth or water if the soup appears too thick.
For a gluten-free version, verify that the kielbasa is gluten-free as some sausages may contain fillers.
Leftovers can be refrigerated in an airtight container for up to 3 days and also freeze well for up to 1 month.

Prep Time: 15 minutes
Cook Time: 55 minutes
Category: Soup
Method: Stovetop
Cuisine: American