Lentil Tomato Soup

An easy, delicious and hearty gluten-free and vegetarian soup to warm up with on chilly days. Bonus, makes a large quantity that freezes and reheats well.

cumin, turmeric, chili powder, ground red pepper, salt and pepper
Lentil Tomato Soup

Savory, Nutrient-dense and Delicious!

Soup season is here!

Actually, my son and husband love soup all year round but I tend to eat soup only when the weather turns colder.  And as of the last week, Fall air has officially arrived in the Northeast and soup is now a regular in the rotation.

This lentil soup is a long time favorite of my husband and mine.

In fact, it was my husband who requested this homemade lentil-tomato soup tonight.

Recipe from Cooking Light, with a few adaptations, we have been making it for as long as I can remember and each time it taste better than I remembered.

gluten free tomato lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com

And it couldn’t be simpler.

It’s just lentils are cooked up with sautéed onions, vegetable broth, water, boxed or canned chopped tomatoes and  lots of yummy spices.

So, all you need is literally 5 main ingredients plus 6 spices — all pantry staples:

gluten-free lentils

yellow onions

vegetable broth

fresh cilantro (it’s not an overpowering flavor — my husband is not generally a fan but loves this soup!

boxed or canned chopped tomatoes

plus ground cumin, turmeric, chili powder, ground red pepper, salt and pepper.

gluten free tomato lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com





Celiac friends, lentils are a naturally gluten-free grain but they are prone to cross contamination… so as recommended by Tricia Thompson of Gluten-free Watchdog, be sure to use gluten-free lentils, rinse them well and carefully pick through them.  Click here for some testing from Gluten-free Watchdog which backs up her recommendation.

And the soup is easy to make.

It comes together quickly — 15 minutes or less, so it’s best to gather all the ingredients first and measure all the spices into a small bowl, then get started.

Once the onions are sauteed, spices and rest of the ingredients added, you just let it come to a boil and then it simmers into a flavorful, hearty soup over the next hour or two.

gluten free tomato lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com

After it’s simmered an hour or longer (we prefer to simmer it 2 hours because the lentils continue to cook and the flavor continue to blend), you can serve as is, puree it using an immersion blender or even reserve a cup or two of the soup and then blend the rest and pour the un-blended reserved cups back in.

We’ve enjoyed it all ways and it’s really personal preference.

gluten free tomato lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com

Paired with cornbread, and a big salad, you’ve got a meal!

As for cornbread, we tend to make cornbread with a mix because there are some great options available and it is easy!

gluten free tomato lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com

We love Stonewell Kitchen, Trader Joes and GF Jules gluten-free cornbread mixes. Do you have a favorite corn bread recipe or mix?

Bonus: this soup recipe makes a large batch and is just as delicious after freezing and reheating.

 gluten free lentil soup #glutenfree #glutenfreerecipes www.healthygffamily.com

Hope you love it as much as we do!

Scroll down to see the recipe and leave a comment if you try.


Lentil Tomato Soup
Prep time
Cook time
Total time
An easy, delicious and hearty gluten-free and vegetarian soup. It's packed with nutrients and paired with cornbread and a salad makes a meal! Freezes and reheats well. Notes: Servings vary depending on if you enjoy it a main meal or a side dish.
Recipe type: Soup, Dinner
Cuisine: Gluten-Free, Vegetarian, Vegan
Serves: 6-10 servings
  • 1 tablespoon olive oil
  • 2 cups chopped onion
  • 1 teaspoon ground turmeric
  • 1 teaspoon ground cumin
  • 1 teaspoon chili powder
  • ½-1 teaspoon ground red pepper (depending on how spicy you want it)
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper
  • 2 garlic cloves, minced
  • 3⅓ cups water
  • 2⅓ cups dried gluten-free lentils, rinsed
  • ⅓ cup chopped fresh cilantro
  • 5½ cups vegetable broth (To help with the math -- I used 1 32oz box + 1½ cups)
  • 1 750g (26.46oz) box chopped tomatoes or 28oz can diced tomatoes, undrained (both work so whichever you have in your pantry or find in store)
Making the soup
  1. Heat olive oil in a large Dutch oven or sauce pan over medium-high heat.
  2. Add the onion and sauté for 3 minutes or until tender.
  3. Add the garlic and all the spices (turmeric, cumin, chili powder, ground red pepper, salt and black pepper) and sauté for 1 minute.
  4. Add the remaining ingredients -- water, broth, lentils, cilantro and chopped tomatoes, and stir to combine. Bring to a boil. Reduce heat; simmer minimally 1 hour. 90 mins to 2 hours is preferable as the lentils cook more and the flavors blend more.
Serving options
  1. You can serve as is with the lentils and tomatoes whole and some broth.
  2. Alternatively, you could puree the entire mix using an immersion blender
  3. Other third option, reserve 2 cups lentil mixture. Blend the remaining mixture with an immersion blender, then stir in reserved 2 cups lentil mixture.
  4. Garnish with cilantro, if desired.
  5. Serve and enjoy!
  6. Extra stores well in the refrigerator for several days. Freezes and reheats well.
cumin, turmeric, chili powder, ground red pepper, salt and pepper

2 thoughts on “Lentil Tomato Soup

  1. I made this in my Instant Pot, and it was a huge hit with the whole family! I used the IP to sauté the onions, garlic, and spices according to the original recipe, added the remainder of the ingredients, set the IP on high pressure for 13 minutes, and did a quick release when finished. It worked out great! I think the next time I will decrease the time to 12 minutes ??.

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