The Ultimate Creamy Mushroom and Lentil Soup: A Hearty Vegetarian Delight
Embrace the comforting warmth of this **Creamy Mushroom and Lentil Soup**, a truly heartwarming dish designed to nourish both body and soul. This recipe artfully blends the earthy, umami-rich flavors of fresh mushrooms with the hearty, protein-packed goodness of lentils, all simmered in a luxuriously creamy broth. It’s a satisfying and incredibly filling meal that promises to become a staple in your kitchen.

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When chilly days call for a hug in a bowl, this creamy mushroom and lentil soup answers. It’s an excellent choice for a satisfying lunch or a comforting dinner, pairing beautifully with a slice of crusty bread for dipping or a crisp, fresh side salad. What sets this soup apart is its ability to deliver a rich, indulgent creaminess without feeling overly heavy. It strikes the perfect balance, making it ideal for any time you crave a cozy meal that feels both wholesome and luxurious.
One of the best aspects of this vegetarian lentil soup is its simplicity. It comes together effortlessly using a handful of readily available ingredients, many of which are likely already in your pantry. Whether you’re planning a quick weeknight dinner, preparing meals for a busy week ahead, or simply looking for an affordable and healthy recipe, this creamy mushroom lentil soup is a fantastic option for any season.
For those seeking a dairy-free alternative, be sure to explore this delicious vegan lentil soup with mushrooms.
Recipe Highlights: Why You’ll Love This Soup
- Deliciously Vegetarian: This creamy mushroom and lentil soup is a hearty, meat-free marvel, bursting with deep, rich flavors that satisfy even the most discerning palate. It’s perfect for vegetarians and anyone looking to incorporate more plant-based meals into their diet.
- Effortless Preparation: Don’t let its gourmet taste fool you – this is a simple recipe featuring common ingredients, making it accessible for home cooks of all skill levels. Minimal fuss, maximum flavor!
- Nutrient & Fiber Powerhouse: Packed with an estimated 17 grams of fiber per serving, this soup is incredibly good for you. Lentils are renowned for their fiber content, promoting digestive health and keeping you feeling full longer.
- Budget-Friendly & Pantry Staple: Made with economical ingredients like lentils, mushrooms, and everyday vegetables, this soup is kind to your wallet. It’s a smart way to create a wholesome, satisfying meal using pantry essentials.
- Comfort Food at its Best: There’s nothing quite like a warm bowl of creamy soup to bring comfort. This recipe delivers a cozy, indulgent experience that’s perfect for curling up with on a cool evening.

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Essential Ingredients for Your Creamy Mushroom & Lentil Soup
Creating this flavorful soup requires a simple selection of ingredients, each playing a vital role in building its rich taste and texture. Here’s a closer look at what you’ll need:

- Olive Oil: The foundation of our flavor, used to sauté the vegetables and build a rich aromatic base. Extra virgin olive oil adds a lovely depth.
- White Mushrooms: Sliced fresh mushrooms provide that quintessential earthy, umami flavor and a satisfying texture. Cleaning them properly (see “Top Tips”) is key!
- Yellow Onion: Diced finely, the onion forms a sweet and aromatic backbone for the soup, mellowing as it cooks.
- Carrots: Sliced or diced, carrots add a touch of sweetness, vibrant color, and essential nutrients to the soup. They soften beautifully during simmering.
- Dried Thyme: This classic herb perfectly complements the mushrooms and lentils, infusing the soup with a warm, savory aroma.
- All-Purpose Flour: A small amount of flour helps to thicken the soup slightly, contributing to its creamy, luscious consistency by creating a light roux with the oil and vegetables.
- Brown Lentils: These little legumes are truly the star – incredibly protein-packed, fiber-rich, and wonderfully hearty. They absorb flavors beautifully and add a substantial texture to the soup. Remember to rinse them thoroughly!
- Vegetable Broth: The savory, flavorful liquid base that makes this soup wonderfully vegetarian-friendly and ensures a deep, rich taste.
- Milk: Adds a beautiful creaminess to the soup, enriching its texture without making it too heavy. Whole milk or 2% milk works best for richness.
- Sour Cream: Stirred in at the end, sour cream delivers a delightful tangy note and enhances the overall luxurious creaminess, balancing the earthy flavors.
- Salt and Black Pepper: Essential seasonings to bring out all the vibrant flavors. Always taste and adjust to your preference.
Refer to the recipe card below for exact quantities and precise measurements.
Step-by-Step Instructions: Crafting Your Cozy Soup
Follow these simple steps to create a truly delicious and comforting bowl of creamy mushroom and lentil soup:

1. Sauté the Mushrooms: In a large, heavy-bottomed pot or Dutch oven, heat the olive oil over medium heat. Add the sliced mushrooms and sauté them patiently. This crucial step allows the mushrooms to release their liquid and then brown, intensifying their flavor, which takes about 5-6 minutes. Don’t rush this!

2. Add Aromatics: Once the mushrooms are ready, add the diced yellow onion and sliced carrots to the pot. Continue to cook for another 3-5 minutes, stirring occasionally, until the onions become soft and translucent. This step builds the aromatic foundation of your soup.

3. Build the Roux: Stir in the dried thyme and all-purpose flour, mixing thoroughly to ensure all the vegetables are coated. Cook for about 1-2 minutes, stirring constantly. This step cooks out the raw flour taste and creates a light roux that will thicken your soup beautifully.

4. Simmer to Perfection: Add the rinsed brown lentils and vegetable broth to the pot. Stir everything well to combine, ensuring no flour lumps remain. Bring the mixture to a gentle boil, then reduce the heat to low. Add the milk, stir, and simmer uncovered for approximately 20 minutes, or until the lentils are beautifully tender. Stir occasionally to prevent sticking.

5. Finish and Serve: Once the lentils are tender and the soup has thickened, remove the pot from the heat. Stir in the sour cream until fully incorporated. Taste and season with salt and black pepper to your preference. Serve this comforting creamy mushroom and lentil soup warm, perhaps with a sprinkle of fresh parsley or a dollop of extra sour cream.

This soup is a perfect example of how simple ingredients can come together to create something truly magical and deeply satisfying. Enjoy every spoonful!

Flavorful Substitutions & Variations
This creamy mushroom and lentil soup recipe is incredibly versatile, allowing for various substitutions to suit your taste preferences or what you have on hand. Don’t hesitate to experiment!
- Mushrooms: While white mushrooms provide a classic flavor, feel free to use any type of mushroom you enjoy. Cremini (baby bella) mushrooms offer a deeper, richer umami. Diced portobello mushrooms add a “meaty” texture, while shiitake or porcini (fresh or rehydrated dried) can elevate the soup with a more intense, gourmet mushroom flavor. A mix of wild mushrooms also works wonders.
- Onions: If yellow onions aren’t available, white or red onions can be used. For a slightly milder and more delicate flavor, try shallots.
- Dried Thyme: Fresh herbs always add vibrancy! If using fresh thyme, double the amount (2 teaspoons fresh for 1 teaspoon dried) and add it along with the flour. Rosemary or a generic Italian seasoning blend can also provide a complementary aromatic profile.
- Brown Lentils: Green lentils are an excellent substitute for brown lentils; they hold their shape well and have a similar earthy flavor profile. Keep in mind that green lentils might require a slightly longer cooking time to become fully tender. If using pre-cooked or canned lentils, reduce the simmering time significantly – just add them towards the end to heat through.
- Vegetable Broth: For a different flavor dimension, you can swap vegetable broth for chicken broth (if not strictly vegetarian) or a rich mushroom broth to intensify the fungal notes.
- Milk: For an even richer soup, half-and-half or even heavy cream can be used in place of milk. For a dairy-free option, use unsweetened almond milk, oat milk, or cashew milk – choose one with a neutral flavor.
- Sour Cream: Greek yogurt (full-fat for best texture) can be a fantastic, slightly tangier, and often healthier alternative to sour cream, adding similar creaminess. Heavy cream can also be used if you prefer a richer, less tangy finish. For a dairy-free version, a plant-based sour cream or cashew cream can be used.
- Add a Spicy Kick: Stir in a pinch of red pepper flakes with the thyme for a subtle warmth, or add a dash of cayenne pepper for more heat.
- Include Leafy Greens: Stir in a handful of fresh spinach or chopped kale during the last 5 minutes of simmering. The residual heat will wilt the greens beautifully, adding extra nutrients and color.
- Boost Vegetable Content: Feel free to add other finely diced vegetables such as celery, bell peppers, or even diced zucchini along with the onions and carrots for more texture and flavor.
Essential Kitchen Tools for This Recipe
Gathering the right equipment before you start cooking makes the process smooth and enjoyable. Here are the key tools you’ll need for this creamy mushroom and lentil soup:
- Large Pot or Dutch Oven: Essential for sautéing vegetables and simmering the soup evenly. A heavy-bottomed pot ensures even heat distribution and prevents sticking.
- Cutting Board: A sturdy surface for safely chopping your vegetables.
- Chef’s Knife: A sharp, all-purpose knife is invaluable for preparing the mushrooms, onions, and carrots efficiently.
- Measuring Cups and Spoons: For accurate ingredient quantities.
- Stirring Spoon/Ladle: For mixing and serving your delicious soup.
Storing Your Leftovers
Proper storage ensures your creamy mushroom and lentil soup remains delicious for future meals. To store leftovers, first allow the soup to cool completely to room temperature. This is important to prevent bacterial growth and to avoid condensation inside the container, which can lead to a watery texture.
Once cooled, transfer the soup to an airtight container. It will keep well in the refrigerator for up to 4 days. When reheating, gently warm the soup on the stovetop over low heat, stirring occasionally, until heated through. If it seems too thick, you can add a splash of vegetable broth or milk to reach your desired consistency.
Freezing is generally not recommended for this particular recipe. The dairy components (milk and sour cream) tend to separate or change texture when frozen and then thawed, resulting in a grainy or curdled consistency. If you absolutely must freeze it, consider making the soup without the milk and sour cream. Add these dairy ingredients fresh when you reheat the thawed soup. This will help maintain the soup’s desirable creamy texture.
Serving Suggestions for Your Cozy Soup
This hearty and creamy mushroom and lentil soup is a meal in itself, but it can be elevated and made even more enjoyable with the right accompaniments:
- Crusty Bread or Dinner Rolls: A classic pairing! A warm, crusty baguette or soft dinner rolls are perfect for soaking up every last drop of the delicious broth.
- Fresh Side Salad: Balance the richness of the soup with a light, crisp green salad dressed with a simple vinaigrette.
- Grilled Cheese Sandwich: For the ultimate comfort food experience, pair your soup with a gooey, savory grilled cheese sandwich.
- Garlic Bread: Homemade or store-bought garlic bread adds a flavorful crunch that complements the earthy tones of the soup.
- Rice or Quinoa: If you want to make the meal even more substantial, serve the soup over a small scoop of cooked brown rice or quinoa.
- Fresh Herbs: A sprinkle of fresh chopped parsley, chives, or dill just before serving adds a burst of color and fresh flavor.
- Extra Dollop of Creaminess: Offer an additional dollop of sour cream or a swirl of plain Greek yogurt on top for those who love extra richness and tang.
Frequently Asked Questions About Creamy Mushroom & Lentil Soup
While freezing is technically possible, it’s generally not recommended for this particular recipe. The milk and sour cream can separate or become grainy once frozen and thawed, altering the soup’s smooth, creamy texture. If you plan to freeze, it’s best to prepare the soup without adding the milk and sour cream. Then, when reheating, add these dairy ingredients fresh to a thawed portion for the best results. Store the base soup (without dairy) in an airtight container for up to 3 months.
No, brown lentils do not require soaking before cooking. A thorough rinse under cold water to remove any debris or dust is sufficient. Soaking would make them too soft and mushy for this soup.
To make this creamy mushroom and lentil soup dairy-free, simply substitute regular milk with an unsweetened plant-based milk (such as almond, oat, or cashew milk). For the sour cream, use a dairy-free sour cream alternative or a swirl of cashew cream at the end. Ensure your vegetable broth is also dairy-free.
Yes, green lentils are a great substitute for brown lentils as they hold their shape well. Red lentils can also be used, but they tend to break down more quickly and create a creamier, thicker soup, so you might need to adjust the cooking time or liquid amount slightly. Black (Beluga) lentils would also work, offering a slightly firmer texture.
Top Tips for the Perfect Creamy Mushroom & Lentil Soup
Achieve the best possible results with these expert tips and tricks:
- Lentil Preparation: Always rinse your dried lentils thoroughly under cold running water. Spread them out and quickly pick through them to remove any small stones or debris that might be present. Remember, you do not need to soak brown or green lentils before cooking for this recipe, as it can make them too soft.
- Salt Timing is Key: It’s best to add the salt towards the end of the cooking process. Adding salt too early can sometimes prevent the lentils from becoming tender, resulting in a firmer texture. Season to taste after the lentils have cooked.
- Mushroom Cleaning: Avoid soaking mushrooms in water, as they absorb liquid like sponges and can become soggy. Instead, briefly run them under cold water in a colander, then gently brush off any visible dirt with a dry paper towel or a soft brush. Blot them thoroughly dry before sautéing to ensure they brown nicely.
- Don’t Rush the Sauté: Give the mushrooms enough time to release their moisture and brown properly. This step is crucial for developing deep, savory flavors. If you crowd the pot, the mushrooms will steam instead of sear, so cook in batches if necessary.
- Tempering Dairy: When adding milk and especially sour cream, ensure the soup is off the heat or at a very low simmer. To prevent curdling, you can also temper the sour cream by mixing a spoonful of hot soup into it first, then stirring that mixture back into the pot.
- Adjust Consistency: If your soup is too thick, thin it out with a splash more vegetable broth or milk until it reaches your desired consistency. If it’s too thin, you can simmer it gently for a bit longer, or for a quicker fix, mix a small amount of cornstarch with cold water to create a slurry, then stir it into the simmering soup until thickened.
More Cozy Soup Recipes You’ll Love
Looking for more heartwarming and satisfying soups like this creamy mushroom and lentil recipe? Try one of these other delicious and hearty soups:
- Instant Pot Tortellini Soup with Sausage
- Classic Beef and Sausage Chili
- Slow Cooker Buffalo Chicken Chili
- Instant Pot White Bean Soup
Did you make this recipe? We’d love to hear what you think! Please take a moment to leave a rating and review—it helps us create high-quality recipes and lets others know what to expect.
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Creamy Mushroom and Lentil Soup
Equipment
-
Large pot
-
Cutting board
-
Chef’s knife
Ingredients
- 2 tablespoons olive oil
- 1 pound white mushrooms sliced
- 1 large yellow onion diced
- 2 medium carrots peeled and sliced
- 1 teaspoon dried thyme
- 2 tablespoons all-purpose flour
- 1 cup dried brown lentils rinsed
- 4 cups vegetable broth
- 1 cup milk
- ½ cup sour cream
- ½ teaspoon salt or to taste
- ¼ teaspoon black pepper
Instructions
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In a large pot, heat olive oil over medium heat. Add the mushrooms and sauté until the liquid has released and evaporated, about 5-6 minutes.
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Add the diced onion and sliced carrots, cooking 3-5 minutes until the onions are translucent.
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Stir in the thyme and flour, mixing well to coat the vegetables. Cook for about 1-2 minutes.
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Add the brown lentils and vegetable broth. Stir to combine. Bring the mixture to a boil, then add the milk. Reduce the heat to low and simmer uncovered for 20 minutes, or until the lentils are tender, stirring occassionally.
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Remove from the heat and stir in the sour cream, salt (to taste), and black pepper. Serve warm.
Video
Notes
Storage: To store leftovers, let the soup cool completely and transfer it to an airtight container. Refrigerate for up to 4 days. Freezing is not recommended because the dairy can cause the soup to change texture.
Nutrition