Discover the ultimate bowl of comfort and nutrition with this incredibly easy Kale Lentil Soup featuring vibrant Brussels sprouts. Crafted for those seeking a quick, satisfying, and deeply nourishing meal, this recipe comes together in approximately 30-35 minutes, making it a perfect solution for busy weeknights or proactive meal prep. Its rich flavors and hearty texture promise to delight your taste buds while fueling your body with wholesome goodness.
More than just a delicious dish, this Kale Lentil Soup is a nutritional powerhouse designed to cater to various dietary preferences. It is entirely vegan, gluten-free, and oil-free, while remaining low in fat. Each generous serving provides an impressive 11 grams of plant-based protein, coupled with an abundance of dietary fiber, making it an excellent choice for supporting digestive health, sustaining energy levels, and promoting overall well-being. This soup offers a simple yet profound way to enjoy a meal that’s both indulgent and incredibly good for you.
The beauty of this recipe lies in its simplicity and adaptability. Utilizing a handful of fresh vegetables and readily available pantry staples, you can effortlessly whip up this flavorful soup. Its flexible nature also means you can easily customize it, incorporating any vegetables you happen to have on hand, ensuring minimal waste and maximum enjoyment. Whether you follow a plant-based diet, are looking for healthier meal options, or simply crave a comforting bowl of soup, this kale and lentil creation is sure to become a cherished addition to your recipe repertoire.
Why You’ll Love This Hearty Kale Lentil Soup
This Kale Lentil Soup with Brussels sprouts isn’t just another recipe; it’s a culinary experience that blends convenience with profound nutritional benefits. Here’s why this vibrant, warming dish is destined to become a favorite in your kitchen:
- Effortlessly Quick & Simple: Forget complex cooking procedures or long hours over the stove. This soup is designed for efficiency, coming together from start to finish in about 30-35 minutes. It’s perfect for those busy weeknights when you crave a homemade meal without the fuss, offering maximum flavor with minimal effort.
- A True Nutrient Powerhouse: Packed with wholesome ingredients like nutrient-dense kale, protein-rich lentils, and fiber-filled Brussels sprouts, every spoonful is brimming with vitamins, minerals, and antioxidants. This soup supports your immune system, provides sustained energy, and contributes significantly to your daily fiber intake, promoting digestive health and satiety.
- Perfectly Plant-Based & Allergy-Friendly: Being 100% vegan, gluten-free, and oil-free, this soup is a fantastic option for a wide array of dietary needs and preferences. It’s also naturally low in fat, making it an excellent choice for anyone looking to maintain a healthy lifestyle without compromising on taste or satisfaction.
- The Ultimate Meal Prep Solution: This soup stores exceptionally well, both in the refrigerator and freezer. Prepare a large batch on the weekend, and you’ll have delicious, healthy meals ready to go throughout the week. Its flavors often deepen and improve overnight, making leftovers even more enjoyable.
- Deeply Satisfying & Flavorful: Despite its healthy profile, this soup is incredibly hearty and full of rich, savory flavors. The blend of aromatic vegetables, earthy lentils, tangy diced tomatoes, and a robust spice mix creates a comforting and fulfilling meal that will warm you from the inside out. It’s truly a hug in a bowl!
The Core Ingredients: A Deep Dive
At the heart of any great soup are its ingredients, and this Kale Lentil Soup shines thanks to a thoughtful combination of fresh produce and pantry staples. Understanding each component not only helps in making the soup but also in appreciating its nutritional value and potential for customization.
Flavour Basics: The Aromatic Foundation
Every great soup begins with a solid aromatic base, and this recipe is no exception. Onion, garlic, carrot, and celery form the classic “mirepoix” (or soffritto) that is crucial for building a deep, complex flavor foundation. Sautéing these vegetables slowly allows their natural sugars to caramelize slightly, releasing their essential oils and infusing the broth with incredible depth. This step is not just about taste; these ingredients also contribute a wealth of vitamins, minerals, and antioxidants, boosting the overall nutritional profile of your soup.
- Onion: Provides a sweet and savory base once cooked down.
- Garlic: Adds a pungent, aromatic kick that is essential for savory dishes.
- Carrot & Celery: Offer a mild sweetness and a fresh, herbaceous note, complementing the other flavors.
Star Vegetables: Brussels Sprouts & Kale
These two vegetables are the stars of the show, bringing both texture and a powerful nutritional punch.
- Brussels Sprouts: This soup offers a fantastic opportunity to incorporate more of this cruciferous vegetable into your diet. Brussels sprouts contribute a slightly bitter, earthy flavor and a satisfying texture. If fresh Brussels sprouts aren’t available or if you prefer a different vegetable, feel free to omit them or swap them for other hearty greens like chopped cabbage, zucchini, or even small broccoli florets.
- Kale: As a renowned superfood, kale is an excellent source of vitamins K, A, and C, as well as various antioxidants. It adds a beautiful vibrant green color and a slightly chewy texture to the soup. Any variety of fresh kale, such as curly or Lacinato (dinosaur) kale, will work beautifully. Ensure you remove the tough stems before chopping. If kale isn’t your preference, fresh spinach is a wonderful, milder alternative; just stir it in at the very end as it wilts much faster.
The Liquids & Legumes: Broth, Tomatoes & Lentils
These components are vital for the soup’s liquid base, body, and protein content.
- Vegetable Broth: The foundation of the soup’s liquid. Both homemade and good quality store-bought vegetable broth (carton or cubes dissolved in water) will work. Opt for a low-sodium variety to control the overall saltiness and adjust to your taste.
- Diced Tomatoes: A can of diced tomatoes provides a wonderful tangy acidity that balances the richness of the lentils and vegetables. Fire-roasted diced tomatoes are highly recommended for an extra layer of smoky depth and intensified flavor, but any type of diced tomatoes will do the trick.
- Lentils: Red lentils are specified in this recipe because they cook quickly and break down nicely, adding a creamy thickness to the soup. They are an incredible source of plant-based protein and fiber. While green or brown lentils can be used as a substitute, be aware that they have a longer cooking time and will retain more of their shape, resulting in a slightly different texture. Always rinse lentils thoroughly before cooking to remove any debris.
Flavor Enhancers: The Spice Blend
A well-chosen blend of spices elevates this soup from simple to spectacular.
- Chili Powder: Adds a warm, earthy, and slightly smoky flavor.
- Cumin: Essential for its warm, distinctive, and slightly pungent aroma.
- Coriander: Contributes a citrusy, sweet, and nutty undertone.
- Paprika: Provides mild sweetness and a beautiful red hue. Smoked paprika can be used for an extra layer of flavor.
- Chili Flakes: For those who enjoy a little heat, chili flakes add a gentle warmth. Omit or adjust to your spice preference.
Ingredient Notes
While the full ingredient list with precise measurements can be found in the recipe card at the end of this post, here are some additional notes to help you prepare this delicious soup:
- Flavour Basics: The combination of diced onion, minced garlic, chopped carrot, and sliced celery creates the fundamental aromatic base for this soup. Sautéing these until tender and fragrant is key to developing a rich, savory depth that will permeate the entire dish.
- Brussels Sprouts: These add a lovely earthy flavor and texture. If you’re not a fan, or if they’re out of season, feel free to substitute with other firm vegetables like chopped bell peppers, green beans, or even small chunks of potato or sweet potato for added heartiness.
- Broth: Use a high-quality vegetable broth for the best flavor. Low-sodium options are great, allowing you to control the seasoning. If you’re using bouillon cubes or powder, ensure it’s dissolved in water according to package instructions.
- Diced Tomatoes: While any type of diced tomatoes works, fire-roasted diced tomatoes are a secret weapon for adding a wonderfully complex, smoky flavor that truly elevates the soup. Don’t drain the liquid; it contributes to the soup’s overall body and tang.
- Lentils: This recipe calls for uncooked red lentils, which cook relatively quickly and break down, creating a thick, creamy consistency. If you opt for green or brown lentils, be aware that their cooking time will be longer (potentially 30-40 minutes) and they will retain more of their shape, resulting in a chunkier soup. Always rinse your lentils thoroughly before adding them to the pot.
- Kale: Any variety of fresh kale can be used. Remember to remove the tough, fibrous stems and chop the leaves into bite-sized pieces for optimal texture. If you prefer a milder green, fresh spinach is an excellent substitute; simply stir it in during the last minute of cooking as it wilts very quickly.
Step-by-Step Instructions
Crafting this hearty Kale Lentil Soup with Brussels sprouts is a straightforward process. Follow these simple steps for a delicious and nourishing meal:
- Step 1: Sauté the Aromatics and Brussels Sprouts. Begin by adding your chopped carrot, onion, celery, minced garlic, and quartered Brussels sprouts to a large soup pot. Instead of oil, use 2-3 tablespoons of water or vegetable broth to sauté them over medium heat. Cook for 6-7 minutes, stirring occasionally, until the vegetables begin to soften and the onion becomes translucent. This initial step is crucial for building the foundational flavors of your soup.
- Step 2: Bloom the Spices. Once the vegetables are tender, stir in all your ground spices: chili powder, cumin, coriander, paprika, and chili flakes (if using). Continue to cook for another 2-3 minutes, stirring constantly. This brief cooking period, known as “blooming,” helps to toast the spices, releasing their full aromatic potential and intensifying their flavors. If the pot appears to be drying out, add an extra tablespoon or two of broth or water to prevent sticking.
- Step 3: Add Liquids and Lentils, Then Simmer. Pour in the vegetable broth and the entire can of diced tomatoes (including the liquid). Add the rinsed uncooked red lentils. Bring the mixture to a gentle boil, then reduce the heat to a simmer. Cook uncovered for 15-20 minutes, or until the lentils are completely soft and have started to break down, thickening the soup. Stir occasionally to prevent lentils from sticking to the bottom of the pot.
- Step 4: Stir in Kale and Serve. Once the lentils are tender, turn off the heat. Add the finely chopped kale to the hot soup and stir well. Allow it to sit for a few minutes; the residual heat from the soup will gently wilt the kale, infusing its nutrients and vibrant color without overcooking it. Taste the soup and season generously with salt and freshly ground black pepper as needed. Serve immediately and enjoy your comforting, homemade meal!
Expert Tips & Tricks for the Perfect Kale Lentil Soup
Achieving the perfect texture and flavor for your Kale Lentil Soup is simple with a few expert insights. Here are some notes and tips to ensure your soup is a resounding success every time:
- Adjusting Soup Consistency: As written, this recipe yields a wonderfully thick and hearty soup, almost resembling a stew. If you prefer a thinner, more traditional soup consistency, feel free to add up to 2 additional cups of vegetable broth or water at the end of the cooking process, stirring until you reach your desired thickness. Remember, the soup will also thicken further as it cools and sits, as the lentils continue to absorb liquid.
- Lentil Choices and Cooking Times: While red lentils are ideal for their quick cooking and creamy texture, you can certainly experiment with other varieties. Green or brown lentils are excellent alternatives, but note that they will require a longer cooking time (typically an additional 10-15 minutes) and will retain more of their shape, resulting in a chunkier soup. If you want to add a grain like quinoa for extra protein and texture, it generally cooks faster than green lentils, so add it about 15 minutes before the end of the simmer time.
- Don’t Overcook the Kale: For vibrant color and optimal nutrient retention, add the chopped kale only after the heat has been turned off. The residual heat from the soup will be sufficient to wilt it perfectly, keeping it tender-crisp rather than soggy.
- Taste and Adjust Seasoning: Always taste your soup before serving and adjust the seasoning as needed. The type of vegetable broth you use can significantly impact the final saltiness. A squeeze of fresh lemon juice at the end can brighten all the flavors beautifully.
- Serving Suggestions: This soup is incredibly satisfying on its own, but it also pairs wonderfully with a side of crusty bread for dipping, a fresh green salad, or even a sprinkle of your favorite plant-based parmesan or fresh herbs like parsley or cilantro for an extra burst of flavor.
Storing and Freezing for Easy Meal Prep
One of the fantastic benefits of this Kale Lentil Soup is how well it stores, making it an ideal candidate for meal prepping healthy, delicious meals throughout the week. Properly storing your soup ensures its freshness and flavor are maintained, whether for a few days or several months.
- Cooling Before Storage: Before transferring the soup to any storage container, it is crucial to allow it to cool completely to room temperature. This prevents condensation from forming, which can lead to bacterial growth and affect the soup’s quality. You can speed up the cooling process by transferring the soup to smaller containers or placing the pot in an ice bath.
- Refrigerator Storage: Once cooled, transfer the soup to an airtight container. It will keep beautifully in the refrigerator for up to 5 days. This makes it perfect for packing in lunchboxes or reheating for quick dinners during your busy week.
- Freezer Storage: This soup freezes exceptionally well, making it a fantastic option for longer-term meal planning. Spoon the cooled soup into freezer-safe containers, leaving a little headspace at the top to allow for expansion. Alternatively, you can use freezer bags, laying them flat for efficient storage. The soup can be frozen for up to 3 months without compromising flavor or texture.
- Thawing and Reheating: If frozen, the safest and best way to thaw the soup is overnight in the refrigerator. Once thawed, or if reheating directly from the fridge, you can warm it on the stovetop over medium-low heat, stirring occasionally until heated through. Alternatively, individual portions can be reheated in the microwave.
- Adjusting Consistency After Storage: It’s common for lentil soups to thicken considerably after being stored, especially in the refrigerator, as the lentils continue to absorb liquid. If you find the soup too thick upon reheating, simply stir in a splash of additional vegetable broth or water until it reaches your desired consistency. Taste and re-season if necessary after thinning.
Frequently Asked Questions About Kale Lentil Soup
Here are some common questions you might have about making and enjoying this nutritious Kale Lentil Soup:
Can I use different types of lentils?
Yes, you can! While red lentils cook quickly and create a creamy texture, green or brown lentils are excellent substitutes. Just be aware that they will take longer to cook (typically an additional 10-15 minutes) and will hold their shape better, resulting in a chunkier soup rather than a creamy one. Always rinse lentils thoroughly before cooking.
What if I don’t have Brussels sprouts?
No problem at all! Brussels sprouts add a unique earthy flavor, but this soup is incredibly versatile. You can simply omit them, or substitute with other hearty vegetables like chopped cabbage, zucchini, bell peppers, green beans, or even small chunks of potatoes or sweet potatoes. Adjust cooking times as needed for your chosen substitution.
Is this soup spicy?
The recipe includes chili powder and an optional 1/2 tsp of chili flakes. This combination provides a warm, mild spice level. If you are sensitive to spice, you can reduce or omit the chili flakes. If you love heat, feel free to add more chili flakes or a pinch of cayenne pepper.
How can I make this soup creamier?
Red lentils naturally break down to create a creamy texture. If you desire an even creamier consistency without adding dairy or plant-based cream, you can use an immersion blender to blend about 1-2 cups of the soup after the lentils have cooked, then stir it back into the pot. This will thicken the soup further while retaining some chunks.
Can I add other vegetables?
Absolutely! This soup is highly adaptable. Feel free to toss in any other vegetables you have on hand, such as chopped bell peppers, spinach (add at the very end), corn, peas, or even some leftover roasted vegetables. Just be mindful of their cooking times; softer vegetables should be added later in the simmering process.
What can I serve with this soup?
This hearty soup is a meal in itself, but it pairs wonderfully with a slice of crusty bread, a light side salad, or a sprinkle of fresh herbs like parsley or cilantro. A swirl of plant-based yogurt or a squeeze of lemon juice can also add a nice fresh touch.
More Healthy Soups You’ll Love
If you’re a fan of comforting, nutritious soups, explore these other delicious and wholesome recipes from our collection:
- Butternut Squash Lentil Soup
- Cauliflower Potato Soup with Peas
- Slow Cooker Butternut Squash Soup
- Vegan Tomato Soup
- Hearty Vegan Vegetable Barley Soup
Kale Lentil Soup
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Ingredients
- 1 white onion, diced (300 g, about 2 cups)
- 3 cloves garlic, minced
- 2 ribs celery, chopped (140 g)
- 1 large carrot, chopped (170 g)
- 2 cups quartered brussel sprouts, stems removed (200 g)
- 2 tsp chili powder
- 2 tsp cumin
- 1 tsp coriander
- 1/2 tsp paprika
- 1/2 tsp chili flakes, omit if sensitive to spice
- 7 cups vegetable broth, 1750 mL
- 1 28 oz. can diced tomatoes
- 1 cup uncooked red lentils, 175 g
- 4 cups de-stemmed and finely chopped kale, 160 g, 1 large bunch
Instructions
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Add the onion, garlic, carrot, celery and brussel sprouts to a pot with 2-3 tbsp water or broth. Cook over medium heat for 5-10 minutes until softened and fragrant, stirring often.
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Stir in the spices and cook for 2-3 more minutes. If the pot starts to dry out, add another 1-2 tbsp broth or water.
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Add the broth, diced tomatoes and lentils and simmer for 15-20 minutes uncovered until the lentils are soft.
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Turn off the heat and stir in the chopped kale. Let it sit for a few minutes until the kale is mixed in. Season with salt and pepper, if needed, and serve right away.
Notes
- This soup will continue to thicken after it sits a day or two and the lentils soak up more of the liquid. You can add more water or broth to adjust the consistency or just enjoy it as a stew.
- Let cool then store in a sealed container in the fridge for up to 5 days or freeze for up to 3 months.
Nutrition
, Calories: 164kcal
, Carbohydrates: 31g
, Protein: 11g
, Fat: 1g
, Fiber: 12g
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Originally published December 27, 2017.