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    Home » Dinners » Simple Lentil Soup Recipe

    Published: Feb 23, 2021 · Modified: Feb 25, 2022 by Nancy Blackstone · This post may contain affiliate links.

    Simple Lentil Soup Recipe

    Jump to Recipe Print Recipe

    This simple lentil soup recipe is a heart healthy, naturally vegan dish that is high in protein, fiber, vitamins and minerals. Plus, it's budget friendly, filling and low-calorie!

    Bowl of Lentil soup with sliced bread
    Homemade lentil soup with French bread

    Vintage Recipes Can Be Healthy!

    There is a perception that vintage recipes are all casseroles and other comfort foods, but that's definitely not the case! While certainly there are many vintage comfort food recipes, there are also many healthy ones, too. Mid century cooks were looking for economical meals that were easy to stretch and could feed the whole family, perhaps for a couple of nights. Homemade soups certainly fit the bill for that.

    What Exactly Are Lentils?

    Lentils are legumes, a vegetable in the same family as peas and beans. They are low in calories (230 per cup) high in protein, and have a positive affect on cholesterol and blood sugar levels. They are filling and play a positive role in weight loss diets.

    Dried lentils come in different varieties, including green, brown, red, and yellow to name a few. Red and yellow lentils are mild and the fastest cooking, usually only taking 15-20 minutes. They are often found in Middle Eastern and Indian dishes. Red lentils turn smooth as they cook. Brown and green lentils need to cook longer, and will retain a good part of their shape and texture. Brown lentils are a common component of veggie burgers, and green lentils are most commonly used in soup. This soup recipe was made with dried, green lentils.

    Original Simple Lentil Soup Recipe

    This recipe came from a book of mid century recipes I purchased from someone in Salt Lake City. I like it because rather than having a broth base, it's made with water and a little tomato juice (I used organic tomato juice.) This means per serving it has a very low sodium content, except for what you add. I added a tablespoon of Diamond Crystal Kosher Salt. The total sodium per serving came out to 512 mg., or 22% of the U.S. recommended daily allowance. This is considerably lower than a canned soup, plus there are no preservatives.

    handwritten vintage lentil soup recipe
    Mid Century handwritten recipe for lentil soup

    What You Need to Make Simple Lentil Soup

    This is one of those recipes you can vary depending on what vegetables you have in your kitchen. I followed the handwritten recipe using an onion, carrot, spinach, and potatoes, and I also added a rib of celery. I found that it didn't need quite as much cooking time as the original recipe said, so I cut it down by a half an hour and it was definitely ready to eat.

    Ingredients for simple lentil soup
    Ingredients for simple lentil soup

    Hints for Making Simple Lentil Soup

    • Rinse lentils under running water, then sort through and remove any chipped or malformed lentils or other debris that might be mixed in.
    • Sauté the onion, garlic, carrot, celery for 8-10 minutes, allowing the vegetables to soften and flavors to meld for the soup base.
    • Simmer on low, covered, once liquids are added, and stir often. If you don't, the lentils will stick to the bottom of the pot.
    • Store in refrigerator for up to 3 days, or in an airtight container in the freezer for up to 3 months.
    Close up of lentil soup in a bowl

    If you love healthy soup recipes, check out our delicious Vegetable Barley Soup, Navy Bean Soup, and Split Pea and Ham Soup.

    If you have a vintage recipe you'd like share with us for possible publication, please scan it and email it to [email protected]. We'd love to hear from you!

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

    Simple Lentil Soup Recipe

    Nancy Blackstone
    This simple lentil soup recipe is a heart healthy, naturally vegan dish that is high in protein, fiber, vitamins and minerals.
    5 from 4 votes
    Print Recipe Pin Recipe
    Prep Time 10 minutes mins
    Cook Time 2 hours hrs
    Total Time 2 hours hrs 10 minutes mins
    Course Main Dish
    Cuisine American
    Servings 10 Servings
    Calories 199 kcal

    Ingredients
     
     

    • 1 tablespoon vegetable oil
    • 1-½ 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
    • ¼ teaspoon black pepper
    • 1 cup fresh chopped spinach leaves

    Instructions
     

    • 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.
    • Add water, tomato juice, basil, and lentils to pot. Bring to boil, then turn down heat, cover, and simmer for 45 minutes.
    • 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.
    • Add spinach, and cook, uncovered for 20 minutes. Serve and enjoy!

    Nutrition

    Serving: 1cupCalories: 199kcalCarbohydrates: 35gProtein: 12gFat: 2gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gTrans Fat: 1gSodium: 723mgPotassium: 715mgFiber: 13gSugar: 3gVitamin A: 1457IUVitamin C: 15mgCalcium: 54mgIron: 4mg
    Keyword Healthy Soup, Old fashioned lentil soup, Vegan Dish, Vegan Soup, Vegetarian Dish, Vegetarian Soup
    Tried this recipe?Let us know how it was!

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    Reader Interactions

    Comments

    1. aiporn.win says

      October 07, 2023 at 7:53 am

      5 stars
      Greetings! Very helpful advice within this article!
      It's the little changes that will make the biggest changes.

      Many thanks for sharing!

      Reply
    2. kia car says

      October 08, 2023 at 8:51 am

      5 stars
      Very great post. I just stumbled upon your blog and wanted to mention that I've really
      loved browsing your weblog posts. In any case I'll
      be subscribing on your feed and I hope you write again soon!

      Reply
    5 from 4 votes (2 ratings without comment)

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    Nancy and Bentley

    Hi, I'm Nancy! Welcome to Flourchild where I share classic mid-century recipes from the 1940's - 1970's. I feature many vintage handwritten recipes, and provide modern shortcuts and a variety of healthy and special diet-friendly versions whenever possible. Join me in exploring the delicious flavors and from-scratch cooking techniques of our past!

    More about me →

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