Mushroom and Thyme Lentil Soup
An earthy and deeply satisfying vegan lentil soup, brimming with hearty brown lentils, umami-rich mushrooms, and aromatic fresh thyme. This high-fiber, high-protein dish offers comforting warmth and robust flavor in every spoonful.
For 6 servings
Rinse the brown lentils thoroughly under cold water until the water runs clear. Chop the onion, carrots, and celery into small, even pieces. Slice the mushrooms and mince the garlic.
In a large Dutch oven or heavy-bottomed pot, heat the olive oil over medium heat. Add the chopped onion, carrots, and celery. Sauté for 5-7 minutes, stirring occasionally, until the vegetables begin to soften.
Stir in the sliced mushrooms and cook for another 5-7 minutes, until they release their moisture and start to brown. Add the minced garlic and cook for 1 minute more until fragrant, being careful not to burn it.
Add the rinsed lentils, vegetable broth, fresh thyme sprigs (you can tie them together with kitchen twine for easy removal), and bay leaf to the pot. Season with salt and freshly ground black pepper.
Bring the soup to a boil, then reduce the heat to low, cover, and simmer for 35-45 minutes, or until the lentils are tender and the soup has thickened slightly. Stir occasionally to prevent sticking.
Remove the thyme sprigs and bay leaf from the soup. Taste and adjust seasoning as needed. If the soup is too thick, add a splash more broth or water.
Ladle the hot soup into bowls. Garnish with fresh chopped parsley, if desired, and a squeeze of fresh lemon juice before serving.
What to keep in mind.
4 tips from the recipe — small details that make a real difference to the final dish.
- 1For a thicker soup, you can mash a portion of the cooked lentils against the side of the pot with a spoon or use an immersion blender for a few pulses.
- 2Always rinse lentils before cooking to remove any debris and improve digestibility. Soaking is not necessary for brown lentils.
- 3Don't add salt too early in the cooking process for lentils, as it can sometimes toughen their skins; however, a little at the beginning helps build flavor. Adjust to taste at the end.
- 4Use good quality vegetable broth for the best flavor; a low-sodium option allows you to control the salt content.
Adapt it for your goals.
Smoky Flavor
Add 1/2 teaspoon of smoked paprika along with the garlic for a subtle smoky depth.
Hearty GreensHearty Greens
Stir in a handful of chopped kale or spinach during the last 10 minutes of simmering for added nutrients and color.
Different MushroomsDifferent Mushrooms
Experiment with wild mushrooms like shiitake or oyster mushrooms for a more complex umami profile.
Why this is on our healthy list.
High in Fiber
Lentils are an excellent source of dietary fiber, promoting digestive health, aiding in blood sugar control, and contributing to satiety.
Plant-Based Protein
Provides a significant amount of plant-based protein, essential for muscle repair, growth, and overall bodily functions, making it a great option for vegans and vegetarians.
Rich in Micronutrients
Packed with essential vitamins and minerals like iron, folate, and manganese, which support energy production, red blood cell formation, and bone health.
Frequently asked questions
Yes, this soup is excellent for meal prep. Flavors often deepen overnight. Store in an airtight container in the refrigerator for up to 4-5 days.


