
Vegan, Vegetarian, WFPB, and Oil-Free!
This warmly seasoned soup in vegan, vegetarian WFPB (Whole-Food Plant-Based), and oil-free.
And, besides that, it’s really tasty, too.
Gather the Ingredients
With any recipe, it’s always a good idea to gather all of your ingredients together before you get started.
There’s two reasons that I (almost) always do this:
- I can make sure I have everything – I hate starting a recipe just to release, when it’s pretty much too late, that I don’t have some critical ingredient.
- I don’t forget to put any in – If there’s anything left over, I know I’ve missed putting something in.

There’s a complete list of ingredients, and measurements, in the printable recipe below.
Frozen Broth
The vegetable broth in this picture is actually frozen. I only zapped it enough to be able to get it out of the container.
Yes, you can put frozen, or semi-frozen, broth directly into your Instant Pot recipe. The only difference you’ll see it that it may take the Instant Pot a little more time to come to pressure than it would with room-temperature broth.
Making Your Own Vegetable Broth
We always make all of our own vegetable broth.
For a quick video on how to do that, check out How to Make Homemade Vegetable Broth in your Instant Pot on YouTube.
Into the Pot!
Put everything into the inner liner of your Instant Pot, in the order listed in the recipe below, making sure that the tomatoes go in last. (Yes, there’s a good reason for that.)

Put the Tomatoes in Last and DO NOT STIR!
As mentioned in the recipe below, put all the ingredients in the inner liner of your Instant Pot, in the order given, with the tomatoes going in last.
Then, DO NOT STIR.

Why Don’t We Stir These Ingredients?
There’s a very good reason that we aren’t going to stir these ingredients.
Tomatoes in contact with the bottom of the inner liner may give you the dreaded Burn Notice! So, in order to avoid that, we just don’t stir the ingredients.
Don’t worry – everything will cook just fine.
Cooking the Soup
For this soup, we’re going to use the Soup/Broth mode on the Instant Pot and set the cooking time for 5 minutes.

Once the cooking time is complete, allow a 10-minute NPR (Natural Pressure Release). That just means letting the Instant Pot sit for 10 minutes.
Then, release the rest of the pressure by carefully turning the Pressure Valve from Sealing to Venting.
Once all of the pressure has been released, and the Float Valve has dropped, carefully remove the lid and give the soup a good stir.

You can serve immediately or refrigerate or freeze for later use.
Total Instant Pot Time
The “cooking time” in an Instant Pot is only part of the story.
We always like to give the Total Instant Pot Time with our recipes, so you know exactly how long it will be before you can put the soup on the table.
Total time can also be affected by the size of Instant Pot you use. In this recipe we used a 6-quart Duo.
Here’s the total time for this recipe:
- Time to come to pressure (using semi-frozen broth): approx. 34 minutes
- Cooking time: 5 minutes
- NPR: 10 minutes
- QR (Quick Release) time to release rest of pressure: approx. 5 minutes
- Total Instant Pot time: approx. 54 minutes
Low Calorie
This soup is very low calorie at only 141 kcal/serving.
Note: If you are using Weight Watchers, this soup is zero points.
Here’s the complete, printable recipe:
Vegetable and Red Lentil Soup
Equipment
- Electric Presssure Cooker
Ingredients
- 6 cups vegetable broth preferably homemade
- 1 cup red lentils
- 1 large yellow onion diced
- 4 cloves garlic minced
- 4 stalks celery sliced
- 2 cups broccoli florets chopped
- 1 cup cauliflower florets chopped
- 2 teaspoons turmeric
- 2 teaspoons chili powder
- 1½ teaspoons sea salt
- 1 teaspoon black pepper freshly ground
- 28 ounces canned diced tomatoes with juice
Instructions
- Combine all the ingredients, in the order given, in the inner liner of your Instant Pot. DO NOT STIR.
- Close and lock the lid ensuring the Pressure Valve is in the Sealing position.
- Select the Soup/Broth mode and set the cooking time for 5 minutes.
- When cooking time is complete, allow a 10-minute Natural Pressure Release (NPR). This allows the contents to settle down before releasing the rest of the pressure.
- After the 10-minute NPR, release the rest of the pressure by carefully turning the Pressure Valve from Sealing to Venting.
- Once all of the pressure has been released, and the Float Valve has dropped, carefully remove the lid.
- Stir well and serve immediately. Or, refrigerate or freeze for later use.
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