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A bowl of Lentil and Spinach Soup with tender lentils, fresh spinach, and warm spices, ready to be served with a side of crusty bread.

Lentil and Spinach Soup

Want richer more flavorful Lentil and Spinach Soup? Try these 5 simple tricks to enhance taste with the right spices herbs and techniques! Boost your soup today!
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Main Course
Cuisine American
Servings 4
Calories 280 kcal

Ingredients
  

  • 1 tablespoon olive oil
  • 1 onion finely chopped
  • 2 carrots diced
  • 2 celery stalks diced
  • 3 cloves garlic minced
  • 1 teaspoon ground cumin
  • 1 teaspoon smoked paprika
  • 1 teaspoon dried thyme
  • cups green or brown lentils rinsed
  • 6 cups vegetable broth low sodium
  • 1 tablespoon tomato paste optional
  • ½ teaspoon chili flakes optional
  • Juice of ½ lemon
  • ½ cup coconut milk optional, for creaminess
  • 4 cups fresh spinach chopped
  • 2 tablespoons fresh parsley or cilantro chopped
  • Salt and black pepper to taste
  • 1 bay leaf

Instructions
 

  • High in plant-based protein and fiber
  • Naturally vegan and gluten-free
  • Inexpensive and accessible ingredients
  • Great for batch cooking and freezing
  • Nutrient-dense and satisfying
  • Adaptable with spices and flavor add-ins
  • Family-friendly and beginner-friendly
  • One-pot cooking for easy cleanup

Notes

Lentil Type Matters

  • Green or brown lentils work best for this recipe because they hold their shape after cooking.
  • Avoid red lentils unless you want a thicker, mushier texture—red lentils break down quickly and are better for creamy soups.

Don’t Skip the Aromatic Base

  • Sautéing onions, carrots, and celery (a classic mirepoix) at the start builds a natural sweetness and depth.
  • Take your time with this step; undercooked aromatics can leave the soup tasting raw or flat.

Toast Your Spices

  • Let cumin, paprika, and thyme sizzle briefly before adding liquid. This step intensifies flavor and adds warmth without overwhelming the dish.

Add Spinach at the End

  • Spinach wilts in just a few minutes. Add it toward the end to keep its color and prevent it from overcooking or turning mushy.

Lemon Juice Brightens Everything

  • A splash of lemon juice adds acidity, which helps balance the earthy lentils and spices. Taste before serving—this small touch can make a big difference.

Want a Creamy Texture?

  • Stir in a little coconut milk or cashew cream near the end for a smooth, rich finish without dairy.

Fresh Herbs Make It Shine

  • Fresh parsley or cilantro added just before serving elevates the flavor and adds brightness. Dried herbs won’t offer the same pop.
  • Taste As You Go
  • Always taste before serving. Lentils soak up flavor, so you may need to adjust salt, pepper, or lemon at the end.

Make It Your Own

  • Add diced potatoes or sweet potatoes for more texture.
  • Throw in a handful of cooked rice or quinoa to make it heartier.
  • Stir in a spoonful of harissa, curry paste, or za’atar for a flavor twist.

Freezer-Friendly

  • This soup freezes well for up to 3 months. Store in airtight containers. Let it cool completely before freezing to preserve texture.

Thick or Brothy?

  • For a thicker soup, mash a portion with a potato masher or blend a cup and stir it back in.
  • For a brothier soup, add an extra cup of broth or water.

Reheating Tip

  • Lentils continue to absorb liquid after cooking, so the soup will thicken in the fridge. Add a splash of broth or water when reheating to loosen it up.
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