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30-Minute Vegan Lentil and Spinach Stew

Jessica T. Brown
A fast, nutritious vegan soup that combines protein-rich red lentils and fresh spinach with warming spices and zesty lemon.
Perfect for a healthy, easy weeknight dinner or meal prep, it’s hearty, low-calorie, and full of flavor
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Dinner, Soup
Cuisine American, Vegan
Servings 4

Equipment

  • 1 large heavy-bottomed pot
  • Measuring cups and spoons (at least 1 cup and 1 tsp sizes)
  • Fine mesh sieve or strainer
  • ladle
  • Digital kitchen scale

Ingredients
  

  • 1 cup 160g finely chopped red onion
  • 2 teaspoons garlic powder
  • 2 teaspoons smoked paprika
  • 2 teaspoons chili powder
  • 1 teaspoon fine sea salt
  • 6 cups low-sodium vegetable broth preferably organic
  • 2 cups 360g red lentils, thoroughly rinsed
  • 4 large handfuls about 150g fresh spinach leaves
  • 2 to 3 tablespoons fresh lemon juice

Instructions
 

  • Sauté the Onions: Pour a few tablespoons of water into a large pot and heat over medium flame.
    Once the water starts to shimmer, add the finely chopped red onion.
    Stir frequently and cook for 5 to 8 minutes until the onions soften and become translucent, releasing their natural sweetness without browning.
  • Add the Aromatic Spices: Sprinkle in the garlic powder, smoked paprika, and chili powder.
    Stir constantly for about 30 seconds until the spices become fragrant and evenly coat the onions, creating a flavorful base for the soup.
  • Combine Broth and Lentils: Pour in the vegetable broth, followed by the rinsed red lentils.
    Increase the heat and bring the mixture to a rolling boil.
    Once boiling, reduce the heat to a gentle simmer and cover the pot with a lid, slightly ajar to allow steam to escape.
  • Simmer Until Lentils are Tender: Let the soup cook for approximately 10 minutes.
    Check occasionally to ensure lentils are tender but maintain their shape and a bit of firmness — avoid overcooking to prevent mushiness.
  • Add Spinach and Lemon: Stir in the fresh spinach leaves, allowing them to wilt naturally into the hot soup.
    Pour in 2 tablespoons of fresh lemon juice, then taste the soup.
    Adjust with additional lemon juice or salt to suit your preference, adding brightness and balance.
  • Serve Warm: Ladle the soup into bowls and enjoy immediately for a nourishing, comforting meal.

Notes

  • Water instead of Oil: Using water to sauté the onions keeps the recipe oil-free and lighter without sacrificing flavor.
  • Lentil Texture: For best texture, avoid overcooking lentils; they should be tender yet retain a slight bite.
  • Adjust Spice Level: Feel free to reduce or increase the chili powder according to your heat preference.
  • Storage: This soup stores well in an airtight container in the refrigerator for up to 4 days and also freezes beautifully for up to 3 months.
  • Lemon Juice: Adding lemon juice at the end brightens the soup, but you can add more or less based on your taste