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Zesty Lemon Lentil Soup - Bright, Comforting, and Easy

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 4 servings

Ingredients

  • 2 tablespoons olive oil
  • 1 medium yellow onion, diced
  • 2 medium carrots, diced
  • 2 celery stalks, diced (optional but recommended)
  • 3–4 garlic cloves, minced
  • 1 teaspoon ground cumin
  • 1 teaspoon ground coriander
  • 1/2 teaspoon turmeric
  • 1/4 teaspoon red pepper flakes (optional, for a little heat)
  • 1 1/2 cups red lentils, rinsed and drained (or use brown/green; see notes)
  • 6 cups low-sodium vegetable broth (or chicken broth if not vegetarian)
  • Zest of 1 lemon
  • Juice of 1–2 lemons, to taste
  • 1 bay leaf
  • Salt and black pepper, to taste
  • 1–2 cups chopped leafy greens such as spinach or kale (optional)
  • 2 tablespoons chopped fresh parsley or dill, plus more for garnish
  • Plain yogurt or a swirl of olive oil, for serving (optional)

Instructions

  • Warm the pot: Set a large pot over medium heat. Add olive oil and let it shimmer.
  • Soften aromatics: Add onion, carrots, and celery. Season with a pinch of salt. Cook, stirring occasionally, until softened and lightly golden, about 6–8 minutes.
  • Add garlic and spices: Stir in garlic, cumin, coriander, turmeric, and red pepper flakes. Cook 30–60 seconds until fragrant. Don’t let the garlic brown.
  • Add lentils and broth: Stir in rinsed lentils, broth, bay leaf, and lemon zest. Bring to a gentle boil, then reduce heat to a simmer.
  • Simmer: Cook uncovered, stirring occasionally, until lentils are tender. For red lentils, 15–20 minutes; for brown/green, 25–35 minutes. Add more broth or water if it gets too thick.
  • Finish with greens: If using, stir in spinach or kale in the last 2–3 minutes of cooking until wilted and tender.
  • Lemon and herbs: Remove the bay leaf. Stir in lemon juice and chopped parsley or dill. Taste and adjust with more lemon, salt, and pepper. You want a bright, balanced flavor.
  • Adjust texture: For a creamier soup, use an immersion blender to blend a few quick pulses directly in the pot. Keep some texture for the best mouthfeel.
  • Serve: Ladle into bowls and top with a dollop of yogurt or a drizzle of olive oil, plus extra herbs if you like.