This Instant Pot lentil soup is a new staple in our cold weather recipe rotation. Packed with lentils and fresh veggies, it's warming and nourishing.
This Instant Pot lentil soup recipe is what I make on nights when I wish that dinner could just cook itself. I’m not going to lie – you still have to chop, measure, and sauté to make this recipe – but once you get that prep work out of the way, the Instant Pot does the rest for you. Pretty awesome, right?
It’s especially awesome given how delicious this Instant Pot lentil soup actually is. It’s brothy, warming, and nourishing, with a savory, tangy flavor and plenty of texture from lentils and fresh veggies. It tastes even better on the second day than it does on the first, and it freezes perfectly, too. If you’re looking for a new soup recipe to add to your cold weather rotation, look no further. This Instant Pot lentil soup is it.
Instant Pot Lentil Soup Recipe Ingredients
Here’s what you’ll need to make this Instant Pot lentil soup recipe:
- Lentils, of course! French green lentils and regular green lentils both work well in this recipe, adding earthy flavor and plant-based protein.
- Onion, garlic, carrot, and celery – They add savory depth of flavor.
- Kale – Any variety works! You’ll add the stems early in the cooking process and stir in the leaves right at the end.
- Fire-roasted diced tomatoes – For smoky, tangy flavor.
- White wine vinegar – It makes the soup nice and bright.
- Ground cumin – It brings out the earthiness of the lentils.
- Fresh thyme – It gives the soup fresh, aromatic depth of flavor.
- Red pepper flakes – For heat.
- Vegetable broth – Use store-bought, or make your own.
- And sea salt and fresh black pepper – To make all the flavors pop!
Find the complete recipe with measurements below.
How to Make Instant Pot Lentil Soup
Once you prep your ingredients, this recipe is easy to make. Here’s how it goes:
First, sauté the onion, carrots, and celery. Select the Instant Pot’s Sauté function, and set the time to 8 minutes. Once the Instant Pot preheats, pour in 2 tablespoons of olive oil and add the vegetables.
Cooking, stirring, for the 8 minutes, or until the vegetables soften.
Next, pressure cook. Add the kale stems, garlic, tomatoes, lentils, vinegar, thyme, salt, cumin, and several grinds of pepper to the pot. Stir, and pour in the vegetable broth. Secure the lid on the Instant Pot, and Pressure Cook on High for 15 minutes. (The actual cooking time will be a bit longer, as it takes a few minutes for the Instant Pot to build pressure.)
Finally, stir in the kale, and season to taste! When the Instant Pot has finished pressure cooking, allow it to release pressure naturally. When the float valve drops, remove the lid, stir in the kale leaves and a pinch of red pepper flakes, and season to taste.
Tip: don’t forget to remove the thyme bundle before serving!
Instant Pot Lentil Soup Serving Suggestions
When you’re ready to eat, ladle the soup into bowls and garnish it with chopped fresh parsley. If you’re not vegan, you could also top your bowl with freshly grated Parmesan cheese for extra richness and salty, nutty flavor. Round out the meal with a couple slices of good crusty bread.
Hungry for more? This soup is a great partner for a fall salad. Try pairing it with any of these recipes:
- Roasted Golden Beet Salad
- Pear Salad with Balsamic and Walnuts
- Sweet Potato Salad
- Kale Salad with Carrot Ginger Dressing
- Butternut Squash Salad
- Shaved Brussels Sprouts Salad
If you have leftover soup, it will keep well in the fridge for up to 4 days. It also freezes well for up to 3 months.
More Favorite Soup Recipes
If you love this Instant Pot lentil soup, try one of these soup recipes next:
- Curried Lentil Soup
- Tortellini Soup
- Cabbage Soup
- Black Bean Soup
- Sweet Potato Soup
- Many-Veggie Vegetable Soup
- Butternut Squash Soup
- Or any of these 33 Best Soup Recipes!
Instant Pot Lentil Soup
Equipment
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, chopped
- 2 celery stalks, chopped
- 2 cups chopped carrots, about 4 medium
- 6 kale leaves, stems finely diced, leaves chopped
- 4 garlic cloves, grated
- 1 (14-ounce) can diced fire-roasted tomatoes
- ¾ cup uncooked green lentils
- 2 tablespoons white wine vinegar
- 12 fresh thyme sprigs, bundled
- 1½ teaspoons sea salt
- Heaping ½ teaspoon ground cumin
- Freshly ground black pepper
- 6 cups vegetable broth
- Red pepper flakes
- ½ cup chopped fresh parsley, for garnish
- Grated Parmesan, for serving, optional
- Crusty bread, for serving
Instructions
- Select the Sauté function on your Instant Pot. Set the level to medium and set the time to 8 minutes. When the Instant Pot is preheated, drizzle the oil into the pot and add the onion, celery, and carrots. Cook for the 8 minutes, or until the vegetables soften.
- Add the kale stems, garlic, tomatoes, lentils, vinegar, thyme bundle, salt, cumin and several grinds of pepper to the pot and stir. Pour in the vegetable broth and secure the lid on the Instant Pot. Pressure cook on high for 15 minutes.
- Allow the Instant Pot to release pressure naturally. This will take 20 to 30 minutes. When the float valve drops, remove the lid and stir in the kale leaves. Add a pinch of red pepper flakes and season to taste with salt and pepper.
- Remove the thyme bundle, and garnish with the parsley and grated Parmesan, if desired. Serve with crusty bread.
Notes
- Heat the oil in a large pot or Dutch oven over medium heat. Add the onion, celery, and carrots and cook until the vegetables start to soften, about 8 minutes.Â
- Stir in the kale stems, garlic, and cumin, followed by the vinegar, tomatoes, broth, thyme, lentils, salt, and pepper. Bring to a boil, reduce the heat, and simmer for 30 minutes, or until the lentils and vegetables are tender.
- Add the kale leaves and cook for 5 minutes more, or until wilted. Add a pinch of red pepper flakes and season to taste with salt and pepper. Garnish with the parsley and Parmesan cheese, if desired.Â
Do you mean two entire “stalks” of celery. Or do you mean 2 ribs of celery?
This soup is phenomenal. Seriously one of the best. Thank you ??
Hi Amina, I’m so glad you enjoyed it!
So good! I love the cumin and thyme.
I used dry thyme, yellow instead of green lentils and added some cayenne pepper along with the red pepper flakes because I love spicy soup. I reduced the cook time by 10 min due to the yellow lentils, and it worked fine. I also added some fresh tomatoes and vegan Worchester sauce to enhance the umami flavor.
My family of four ate the whole thing 🙂
Thank you – was hoping dried thyme would work.
I love all your recipes but I wish they included nutritional values!
Hi! I’m worried about carrots getting mushy. ( I like carrots that are still a bit firm.) Can anyone tell me if this happened doing the instant pot version? I’m wondering if I should just steam carrots separately in microwave and add at the end.
Thanks!
Hi Kait, they soften in the soup but I don’t think they’re too mushy.
Wow! My 13 year old Granddaughters claim this is the best soup they ever had. I couldn’t give you a more positive review. Followed it to a T.
So good! Subbed rice vinegar and spinach. Perfect flavor and so easy in InstantPot!
I thought this was delicious! Instead of kale, I added half a bag of frozen peas and, after cooking, some frozen spinach greens. I also used 1.5 tsp dried thyme instead of fresh thyme… and I added the white wine and garlic in the middle of sautéing the carrots/celery/onion.. I was trying to make the white wine flavor more subtle and garlic more fragrant.
Next time I will try 1-1.25 cups lentils.
Hi Andrea, I’m so glad you loved the soup!
This soup is worthy to be on the menu every three weeks. The only adjustment I make is to cut down on the cook time to 10 minutes, which is plenty and in accordance with the InstyPot guide to cooking lentils. The cumin really rocks this dish!
So glad you love it!
Made this for dinner tonight and it was delicious! So easy, healthy, and tasty. Evidently, this is my week for Love and Lemons recipes as I’ve also made your pumpkin bread and oatmeal pancakes–all so good!
I’m so glad you’ve enjoyed the recipes this week!
I’ve recently changed my diet to add more veggies/plant based and all I can say is WOW! Recipe and after recipe I find myself loving veggies more and more. Thank you for these wonderful recipes and this soup! Yum!!!
Hi Linsey, I’m so glad you’ve loved the recipes and the soup!
used no celery, no vinegar, and no fire roasted tomatoes. instead used copious amounts of fresh sage and extra garlic , a green bell pepper, tomato paste and chicken stock….came out amazing! next time will double the lentil amount as the pot was not close to being full…the flavor is wonderful!
I’m so glad you enjoyed it!
I have to say, this recipe was delicious! I made it for my husband and my friends and they all LOVED it. So easy, so healthy and super delicious. The flavour is outrageous! This will be making an appearance in my kitchen again for sure!
I’m so glad it was a hit!
Omg this soup is baller AF. You’re like OMG what’s this flavor? Bro it’s just a little cumin and it just sets this light yet hardy soup OFF
I’m so glad you loved it!
This soup is absolutely delicious! Easy, quick, and so healthy. Perfect for a winter night!