Hearty Italian Sausage Lentil Soup made in one pot with savory sausage, red lentils, kale, and a rich bone broth. A cozy, protein-packed meal perfect for busy weeknights.
Cook the Sausage: Heat olive oil in a large soup pot over medium-low. Add the Italian sausage, breaking it up with a spoon, and cook until browned. Remove with a slotted spoon and set aside.
Sauté the Vegetables: Add carrot, celery, and onion to the pot. Cook for 5–7 minutes, stirring occasionally, until softened. Add garlic and cook for 1 more minute.
Build the Soup Base: Stir in lentils, diced tomatoes, thyme, Montreal steak spice, and 6 cups of broth (adding more later if needed). Return sausage to the pot. Season lightly with sea salt.
Simmer: Bring to a boil, then reduce heat to low. Cover and simmer 30–40 minutes, until lentils are tender. Add more broth or water if the soup thickens too much.
Finish with Greens: Stir in kale (last 5 minutes of cooking) or parsley (just before serving). Adjust sea salt to taste and serve warm.
Notes
Sausage: Swap Italian beef sausage for pork, chicken or turkey sausage if you prefer a lighter option.
Lentils: Red lentils cook quickly and give the soup a creamy texture. Green or brown lentils can be used, but increase the cook time by 10–15 minutes.
Greens: Kale holds up well in soups, but spinach, Swiss chard, or collard greens are great substitutes. Add spinach at the very end so it doesn’t overcook.
Broth: Bone broth adds rich flavor and protein, but regular chicken broth or even vegetable broth works just fine.
Spices: Montreal steak spice adds bold flavor—substitute with Italian seasoning, smoked paprika, or your favorite herb blend if desired.
Veggies: Add zucchini, bell peppers, or potatoes for extra bulk and nutrition.
Texture: If the soup thickens too much after cooling, stir in extra broth or water when reheating.