This heart healthy lentil soup is a comforting, nutrient-packed meal that’s as easy to make as it is delicious. With plenty of fiber, plant-based protein, and antioxidant-rich vegetables, it’s designed to support cardiovascular wellness without sacrificing flavor. Whether you’re looking for a filling lunch or a cozy dinner, this soup is a satisfying way to eat well and feel great.
Ingredients
- 1 tablespoon extra-virgin olive oil
- 1 medium yellow onion, diced
- 2 medium carrots, peeled and chopped (about 1 cup)
- 2 celery stalks, chopped (about 1 cup)
- 3 garlic cloves, minced
- 1 teaspoon ground cumin
- 1 teaspoon smoked paprika
- 1/2 teaspoon dried thyme
- 1/2 teaspoon ground black pepper
- 1/2 teaspoon salt (or to taste)
- 1 (14.5-ounce) can no-salt-added diced tomatoes, with juices
- 1 1/2 cups dried brown or green lentils, rinsed
- 6 cups low-sodium vegetable broth
- 2 cups water
- 2 cups baby spinach (about 2 large handfuls)
- 1 tablespoon fresh lemon juice (about 1/2 medium lemon)
- Fresh parsley, chopped, for garnish (optional)
Instructions
- Prep your ingredients: Dice the onion, chop the carrots and celery, and mince the garlic. Rinse and pick over the lentils to remove any debris.
- Saute aromatics: In a large pot or Dutch oven, heat the olive oil over medium heat. Add the onion, carrots, and celery. Cook, stirring occasionally, until the vegetables are softened and the onion is translucent, about 6-8 minutes.
- Add garlic and spices: Stir in the garlic, cumin, smoked paprika, thyme, black pepper, and salt. Cook for 1-2 minutes, until fragrant.
- Deglaze and add base: Pour in the diced tomatoes (with their juices), scraping up any browned bits from the bottom of the pot.
- Add lentils and liquids: Stir in the rinsed lentils, vegetable broth, and water. Increase the heat and bring the mixture to a boil.
- Simmer: Reduce heat to low, partially cover the pot, and simmer for 30-35 minutes, or until the lentils are tender but not mushy. Stir occasionally to prevent sticking and check the texture of the lentils after 25 minutes, as cooking times can vary.
- Finish with greens: Stir in the baby spinach and cook for 2-3 minutes, until wilted.
- Add lemon and taste: Remove the pot from heat. Stir in the lemon juice and adjust salt and pepper as needed.
- Serve: Ladle into bowls and garnish with chopped fresh parsley, if desired. Enjoy hot with your favorite whole grain bread or a green salad.
Tips
- Substitutions: If you don’t have smoked paprika, use regular paprika or a pinch of chipotle powder for a smoky kick. Kale or Swiss chard can stand in for spinach—just chop and add a few minutes earlier, as they take longer to soften.
- Lentil type matters: Brown and green lentils hold their shape best for soup. Red lentils will make the soup creamier and cook faster, but the texture will be different.
- Salt and sodium: Using low-sodium broth keeps the soup heart healthy. Adjust salt at the end, especially if your broth is not salted.
- Batch cooking: This soup freezes beautifully, making it perfect for meal prep. Cool completely before freezing in portions for easy lunches or dinners.
Serving Suggestions
This lentil soup is a complete meal on its own, but it pairs wonderfully with whole grain sides. Serve it with a slice of toasted whole wheat or rye bread for extra fiber, or alongside a simple mixed greens salad dressed with olive oil and lemon. For a Mediterranean touch, top each bowl with a dollop of nonfat Greek yogurt and a sprinkle of za’atar or sumac. If you want a heartier dinner, serve the soup over brown rice or quinoa for additional plant-based protein and texture.
Variations
- Spicy lentil soup: Add a pinch of red pepper flakes or a diced jalapeño with the aromatics for gentle heat.
- Hearty vegetable version: Stir in chopped zucchini, bell pepper, or a handful of frozen peas during the last 10 minutes of simmering for extra veggies.
- Protein boost: Add a cup of cooked shredded chicken breast (skinless) or diced turkey after simmering, if you’re not vegetarian. For plant-based protein, stir in a can of drained chickpeas with the lentils.
- Herb-forward: Swap parsley for fresh dill or cilantro at the end for a different flavor profile.
Storage and Reheating
Let the soup cool to room temperature before transferring to airtight containers. Store in the refrigerator for up to 5 days. For longer storage, freeze individual portions for up to 3 months. To reheat, thaw overnight in the refrigerator if frozen, then warm gently on the stove over medium-low heat, stirring occasionally. You can also microwave individual servings on medium power for 2-3 minutes, stirring halfway through. Add a splash of water or broth if the soup has thickened during storage.
Frequently Asked Questions
- Are lentils really heart healthy?
- Yes, lentils are an excellent source of soluble fiber, which helps lower cholesterol levels. They’re also rich in plant-based protein, potassium, and antioxidants—all of which support cardiovascular health. This recipe is low in saturated fat and sodium, making it a great choice for heart health.
- Can I use canned lentils instead of dried?
- You can use canned lentils in a pinch. Rinse and drain two (15-ounce) cans and add them after the vegetables are tender, simmering for just 10-15 minutes. Reduce the liquid by about 1 cup, since canned lentils don’t absorb as much as dried.
- How do I make the soup thicker or creamier?
- If you prefer a thicker soup, use an immersion blender to puree a cup or two of the soup directly in the pot, then stir it back in. For a creamier texture without adding cream, stir in a spoonful of plain nonfat Greek yogurt or blend in some cooked potatoes with the lentils.
- Is this recipe gluten free?
- Yes, this lentil soup recipe is naturally gluten free as written. Just be sure to use a certified gluten-free vegetable broth if you are sensitive to trace gluten.
- Can I make this soup in a slow cooker or Instant Pot?
- Absolutely! For a slow cooker, sauté the aromatics first, then add all ingredients except spinach and lemon juice. Cook on low for 7-8 hours or high for 3-4 hours. Stir in spinach and lemon juice just before serving. For an Instant Pot, use the sauté function for the aromatics, then add the rest and cook on manual high pressure for 15 minutes; quick release, then finish with spinach and lemon.
- What’s the best way to freeze and reheat?
- Freeze fully cooled soup in single-serve containers, leaving room for expansion. Thaw overnight in the fridge or reheat directly on the stove or in the microwave. Add extra broth if needed, as lentils may absorb liquid during freezing.
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