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Hearty Vegan Lentil Soup

A deeply satisfying, one-pot vegan soup featuring protein-rich brown lentils, aromatic vegetables, and savory herbs. It's easy to make, packed with nutrients, and delivers restaurant-quality flavor from your own kitchen.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 6 servings
Course: Main
Cuisine: American
Calories: 280
Ingredients Equipment Method Notes

Ingredients
  

  • 2 tbsp Extra virgin olive oil
  • 1 large Yellow onion diced
  • 3 cloves Garlic minced
  • 2 medium Carrots peeled and diced
  • 2 ribs Celery diced
  • 1 tbsp Tomato paste
  • 1 tsp Dried thyme
  • 1 tsp Smoked paprika
  • 1.5 cups Brown or green lentils rinsed and picked over
  • 6 cups Vegetable broth low-sodium recommended
  • 1 14.5 oz can Diced tomatoes with juices
  • 2 cups Chopped kale or spinach stems removed
  • 1 tbsp Fresh lemon juice or red wine vinegar
  • Salt and black pepper to taste

Equipment

  • Large Dutch oven or heavy-bottomed soup pot (5-6 quart)
  • Wooden spoon or spatula
  • Chef's knife and cutting board
  • Measuring cups and spoons

Method
 

  1. Heat the olive oil in a large Dutch oven or heavy-bottomed pot over medium heat. Add the diced onion, carrots, and celery. Cook, stirring occasionally, for 8-10 minutes until the vegetables have softened and the onions are translucent. This step, called 'sweating,' builds a crucial flavor foundation—don't rush it.
  2. Add the minced garlic, tomato paste, dried thyme, and smoked paprika to the pot. Stir constantly for 1-2 minutes until the tomato paste darkens slightly and the spices become fragrant. This 'blooms' the spices and toasts the tomato paste, unlocking their full flavor potential.
  3. Pour in the rinsed lentils, vegetable broth, and the diced tomatoes with their juices. Give everything a good stir, scraping up any browned bits from the bottom of the pot. Increase the heat to bring the soup to a boil.
  4. Once boiling, reduce the heat to maintain a gentle simmer. Partially cover the pot with a lid and let it cook for 30-35 minutes, stirring occasionally, until the lentils are tender but not mushy. The soup will thicken as it cooks.
  5. Stir in the chopped kale or spinach and cook for another 3-5 minutes until the greens are wilted and vibrant. Remove the pot from the heat. Stir in the fresh lemon juice or vinegar. This brightening agent is non-negotiable—it lifts and balances all the deep, savory flavors. Taste and season generously with salt and black pepper.

Notes

Chef's Tips:
• The soup thickens significantly as it cools. Add a splash of broth or water when reheating to reach your desired consistency.
• Avoid adding salt until the lentils are fully cooked, as salt can toughen their skins and extend cooking time.
• Serve with crusty bread for dipping or over a scoop of cooked quinoa for an extra-hearty meal.
Food Safety:
• Cool soup to room temperature before refrigerating to prevent bacterial growth
• Reheat leftovers to a minimum internal temperature of 165°F (74°C)