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Bowl of simple lentil soup served with French bread on the side.

Simple Lentil Soup Recipe

  • Author: Nancy Blackstone
  • Prep Time: 10 Minutes
  • Cook Time: 2 Hours
  • Total Time: 2 Hrs 10 Minutes
  • Yield: 10 1-Cup Servings 1x
  • Category: Main Dish
  • Method: Stovetop
  • Cuisine: American


This simple lentil soup recipe is a heart healthy, naturally vegan dish that is high in protein, fiber, vitamins and minerals.



1 tablespoon vegetable oil

1-1/2 cups diced yellow onion

1 carrot, diced

1 celery rib, sliced

8 cups water

2 cups tomato juice

1 tablespoon basil

2 cups lentils, rinsed 

2 russet potatoes, cubed

1 tablespoon kosher salt

1/4 teaspoon black pepper

1 cup fresh, chopped spinach leaves


  1. Heat oil in stock pot over medium-low heat. Sauté onion, carrot, and celery for 8-10 minutes, until vegetables are soft and onion is translucent.
  2. Add water, tomato juice, basil, and lentils to pot. Bring to boil, then turn down heat, cover, and simmer for 45 minutes.
  3. Add potatoes, kosher salt and pepper. Cover, and continue to simmer for an additional 45 minutes, stirring frequently. If soup has cooked down and is too thick, add water to desired consistency.
  4. Add spinach, and cook, uncovered for 20 minutes. Serve and enjoy!

Keywords: Healthy Soup, Vegan Dish, Vegan Soup, Vegetarian Dish, Vegetarian Soup, Old fashioned lentil soup