Italian Style Lentil Soup with Vegetables and Herbs

A hearty vegetarian soup featuring tender lentils simmered with aromatic vegetables, fresh herbs, and leafy greens in a rich tomato-vegetable broth. This comforting Italian-inspired dish combines earthy lentils with carrots, celery, bell pepper, and zucchini, finished with wilted kale and fresh parsley. Perfect for weeknight dinners or meal prep, the soup can be served chunky or partially blended for a creamier texture. Garnished with Parmesan cheese and fresh herbs, it delivers satisfying protein and fiber while remaining naturally vegetarian.
Ingredients
- 2 Tbsp olive oil
- 4 garlic cloves, minced
- 1 large carrot, peeled and diced
- 2 celery stalks, diced
- ½ red bell pepper, seeded and diced
- 1 small zucchini, halved
- 1 tsp oregano
- ½ tsp thyme
- ½ tsp rosemary
- ¼ tsp salt
- ⅛ tsp black pepper
- 2 cups green or brown lentils, rinsed until water runs clear
- 1 15 oz can diced tomatoes
- 3 Tbsp tomato paste
- 4 cups vegetable broth
- 2 cups kale, chopped
- fresh Italian parsley, for garnish(optional)
- freshly grated Parmesan cheese, for garnish(optional)
Instructions
- 1
Heat olive oil in large pot over medium heat
- 2
Sauté garlic until soft, about 2 minutes
- 3
Add carrot, celery, bell pepper, zucchini, oregano, thyme and rosemary
- 4
Sauté for 5 minutes
- 5
Add lentils, diced tomatoes, tomato paste and vegetable broth
- 6
Simmer on low heat for 20 minutes or until lentils are tender
- 7
Add kale and stir until wilted
- 8
Serve warm with garnishes
Tips
Blend half the soup for a creamy texture while keeping some chunks for variety
Rinse lentils thoroughly until water runs clear to remove any debris and reduce cooking foam
Wilt kale at the end to preserve its bright color and prevent overcooking
Good to Know
Refrigerate in airtight container for up to 5 days
Can be made 1-2 days ahead, flavors improve overnight
Serve hot with fresh parsley, Parmesan cheese, and optional lemon wedges or crushed red pepper
Common Mistakes
Add kale at the end to avoid overcooking and maintain bright color
Rinse lentils thoroughly to prevent foamy broth
Do not over-blend if wanting chunky texture
Substitutions
Dairy-Free Swaps
General Alternatives
FAQ
Can I freeze this lentil soup?
Yes, freeze for up to 3 months in airtight containers. Thaw overnight in refrigerator and reheat gently, adding broth if needed.
What if I want a smoother texture?
Use an immersion blender to puree partially or completely. Blend half for creamy base while keeping some chunks for texture.
Can I substitute different lentils?
Red lentils cook faster and break down more, creating naturally creamy soup. Brown or green lentils hold their shape better for chunkier texture.