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Home » Instant Pot » Slow Cooker Creamy Vegan Tomato Soup with Stove Top Instructions

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Slow Cooker Creamy Vegan Tomato Soup with Stove Top Instructions

March 21, 2019 by Kathy Hester 35 Comments

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My Slow Cooker Creamy Vegan Tomato Soup is easy and so dreamy! It’s creamy from cashews & oats. Leave out the cashews if you don’t do nuts.
Vegan Creamy Tomato Soup Recipe with Slow Cooker and Instant Pot Instructions

I want to share one of my favorite lazy recipes with you today. My Quick and Easy Creamy Tomato Soup comes together with the least effort and tastes like you worked hard all day.

Can I Cook This in My Slow Cooker? Instant Pot? Stove-top?

I have 2 different methods to cook it for you to choose from on this post, on the stove or in your slow cooker. You can even make it in a heated blender if you have one!

Get the Instant Pot version of this recipe on my new site here: Plant Based Instant Pot.

How Can You Make a  Dairy-Free Soup Creamy?

Basically, you are cooking the oats and softening up the cashews. The oats and cashews are what makes this soup extra creamy.

I like my Slow Cooker Creamy Vegan Tomato Soup to be very thick, but you can add extra water to thin it out if you prefer it that way.

Vegan Creamy Tomato Soup Recipe with Slow Cooker and Instant Pot Instructions

Print Recipe
4.93 from 13 votes

Slow Cooker Creamy Vegan Tomato Soup

This soup is as easy as the condensed soups but free of the corn syrup and preservatives. You need a few things from your pantry, then you can make it in your slow cooker, Instant Pot or on the stove-top. Please note that you can easily halve this recipe and just use 1 can of either type tomatoes you happen to have on hand.
Prep Time5 mins
Cook Time15 mins
Total Time20 mins
Course: Soup
Cuisine: American
Keyword: Creamy Tomato Soup
Servings: 6 servings
Calories: 161kcal
Author: Kathy Hester

Ingredients

  • 1 - 28 ounce can crushed tomatoes can use tomato puree
  • 1 - 28 ounce can whole peeled tomatoes
  • 3 cups water
  • 1/2 cup cashew pieces
  • 3 tablespoons oats rolled, steel-cut or Scottish
  • 1 to 2 vegetarian bouillon cubes
  • 1 tablespoon dried basil
  • 4 cloves garlic
  • 1 tablespoon agave nectar optional
  • salt and pepper to taste

Instructions

Instant Pot Method

  • Add all the ingredients EXCEPT for the agave nectar, salt and pepper to your Instant Pot. Cook on manual for 5 minutes and let the pressure come down naturally - that will take about 10 minutes.

Slow Cooker Method

  • Add all the ingredients EXCEPT for the agave nectar, salt and pepper to your slow cooker. Cook on low 8 to 10 hours.

Stove-top Method

  • Add all the ingredients EXCEPT for the agave nectar, salt and pepper to a soup pot. Cook on medium heat for 15 minutes to soften the cashews.

Finishing Steps

  • Carefully pour the cooked mixture into a blender and blend until smooth. You may need to do this in 2 batches. Add agave nectar if using and salt and pepper to taste. You can also add more water if the soup is thicker than you want it to be.

Nutrition

Calories: 161kcal | Carbohydrates: 18g | Protein: 6g | Fat: 9g | Saturated Fat: 2g | Sodium: 659mg | Fiber: 4g | Sugar: 6g
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Vegan Creamy Tomato Soup Recipe with Slow Cooker and Instant Pot Instructions

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Filed Under: crockpot, Fall, Gluten-free, Instant Pot, Main Course, No Added Oil, Slow Cooker Recipes, Soups, Winter Tagged With: cashews, oats, slow cooker, soup, tomato soup, Vegan

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Comments

  1. Ellen says

    March 22, 2015 at 2:27 pm

    Just put this in my crockpot! I have to cook it on high for a while and then on low. I plan to try blending it at the end with a hand blender. Thank you!

    Reply
  2. Donna says

    January 2, 2016 at 11:36 am

    What is an instant pot? I’ve never heard of it, is it something new on the market?

    Reply
    • VitaZgal says

      February 3, 2017 at 3:39 pm

      If you are abe, go to YouTube. Type in Instant Pot for beginners… Your life will be forever changed! Fun fun fun 🙂

      Reply
  3. Annette Kennedy says

    January 22, 2016 at 8:28 pm

    Made this in my Instant Pot and it turned out wonderful!! We loved it. It was so easy to make and tasted so good. I’ll be making this one a lot 🙂

    Reply
    • Donna says

      February 27, 2016 at 1:20 pm

      Small pressure cooker. Can be found on Amazon.

      Recipe sound wonderful, will make it at a later time.

      Reply
  4. Julie Hasson says

    March 4, 2016 at 3:00 pm

    I am so making this!

    Reply
  5. Barb says

    May 28, 2016 at 3:30 pm

    Absolutely delicious

    Reply
  6. W S says

    January 6, 2017 at 7:52 pm

    This was very good! I made this in my Instant Pot. I didn’t have whole tomatoes so I used diced along with the crushed. I didn’t add agave, salt or pepper. I tried the immersion blender, but it didn’t get the soup smooth enough for me. My trusty Vitamix did the trick!

    Reply
  7. KensingtonCooker says

    January 8, 2017 at 5:09 pm

    Praises for this recipe! I modified it: cut it in half to fit in a small Crockpot, omitted cashews which I can’t eat ((instead I doubled the oatmeal for thickening and added nutritional yeast at the end for flavor), omitted agave nectar, and–here it comes–I quintupled the garlic! it came out marvelous, and even my tough critic husband thinks it’s a keeper. Thank you, Kathy!

    Reply
    • Kathy Hester says

      January 8, 2017 at 5:34 pm

      I love hearing how people modify my recipes to fit their needs. I’m so glad you like it!

      Reply
  8. Anna Wright says

    January 17, 2017 at 1:55 am

    I just love this veggie soups you made, great cooking with simple ingredients 🙂

    Reply
  9. Scott says

    January 19, 2017 at 7:47 pm

    We are making this for the second time this week. We loved it SO much! It is decadent and delicious and better than tomato soup I’ve had in high-end restaurants here in the Washington D.C. metro area. This is going to be in our rotation on a regular basis throughout this winter. This next time we’re planning on serving it with vegan grilled cheese sandwiches. My mouth is already watering thinking about this soup. I may double the recipe because my wife loves taking it to work for lunch the next day. I love your website and love your new book! The Instant Pot has changed our lives, helping us stick to our vegan diet as well as prepare all of our meals at home.

    Reply
    • Kathy Hester says

      January 19, 2017 at 7:50 pm

      Thank you so much for letting me know!

      Reply
  10. Dp says

    January 22, 2017 at 5:29 pm

    Loved this! It was remarkable-I’ll make it often!

    Reply
  11. Tracy Catarius says

    March 6, 2017 at 11:57 am

    is there anything you would recommend to replace the oats? I cannot have oats unfortunately. Thank you.

    Reply
    • Kathy Hester says

      March 6, 2017 at 12:06 pm

      You could leave out the oats and add a little more cashews.

      Reply
      • Tracy says

        March 7, 2017 at 8:44 pm

        thank you!

        Reply
  12. Laura says

    March 15, 2017 at 6:56 am

    what can use instead of vegetable cubes?

    Reply
    • Kathy Hester says

      March 15, 2017 at 7:47 pm

      You could use any vegan bouillon you have. I make my own and freeze them in cubes. You can get that recipe here: .

      However, if you want to make it right now and you don’t have any on hand add a little nutritional yeast.

      Reply
  13. Dana says

    April 1, 2017 at 6:27 pm

    Great soup! This is a keeper!!

    Reply
  14. Lani says

    August 12, 2017 at 1:36 pm

    Hello. Does it matter if its in high pressure or low pressure setting?
    Thanks in advance.

    Reply
    • Kathy Hester says

      August 12, 2017 at 7:52 pm

      High pressure is usually what I use unless low is specified. In this recipe, I don’t know that it matters too much.

      Reply
  15. Stacey says

    August 13, 2017 at 4:49 pm

    I don’t see agave nector in the ingredient list, but I see it listed in the cooking steps. How much do I use?

    Reply
    • Kathy Hester says

      August 13, 2017 at 5:05 pm

      Just add a little maybe a teaspoon or so, just to make the flavor less acidic.

      Reply
  16. Felicia Best says

    August 18, 2017 at 11:32 am

    Have you ever made this with fresh tomatoes? I have a whole bunch that I need to use, and am wondering how I might need to adjust the recipe to use those instead. What are you thoughts?

    Reply
    • Kathy Hester says

      August 18, 2017 at 8:12 pm

      I haven’t made this with fresh tomatoes, but you should be able to. It will be much thinner, so you may have to cook it with the lid off until it gets thick enough.

      Reply
  17. Shari says

    January 8, 2018 at 9:12 am

    I made this on a freezing cold night and it was perfect! So easy and delicious! I’m not an experienced cook and made it in the Instant Pot. It’s foolproof! Definitely a keeper.

    Reply
  18. Marji Kacur says

    January 17, 2018 at 5:48 pm

    I just tried to make this soup , the tomato one, and just added everything into the instant pot and put it on for 5 min. I ended having the burn sign come on after maybe 3 – 4 min So I stopped it and shut it off. I will end up cooking it on the stove. Still a beginner with my new instant pot but not having much luck.

    Reply
    • Kathy Hester says

      January 17, 2018 at 5:54 pm

      What size is your IP? I’ve made this in a 6-quart several times with no issues. I’d be happy to help you troubleshoot it though.

      Reply
  19. Pattie says

    July 27, 2018 at 7:36 pm

    Could you use vegetable stock in place of water and vegetable cubes?

    Reply
    • Kathy Hester says

      July 27, 2018 at 7:58 pm

      Absolutely!

      Reply
  20. Gina says

    November 6, 2018 at 11:17 am

    Made this soup in my Instant Pot Ace Blender. I halved the recipe and used a heaping tablespoon of nutritional yeast instead of the veggie bullion. Turned out fantastic! So delicious! Definitely a keeper…so quick and easy. I will be making this again soon!

    Reply
  21. Jeanne Waxgiser says

    December 22, 2018 at 12:59 am

    What type of cashews are being used in this recipe – raw or roasted?

    Reply
    • Kathy Hester says

      December 22, 2018 at 1:04 am

      I use raw, but you could use roasted in a pinch.

      Reply
  22. Lorinda says

    March 24, 2019 at 2:29 pm

    My slow cooker is only 1.5 qt. but since you suggest adding hot water if the soup was too thick, I only added about 1 cup water (used to rinse out the cans) to cook the soup rather than halving the recipe. Worked great! I’ve been adding a bit of water to each bowl. I prefer a “creamier” tomato soup, so next time I’ll add extra oats. Also, rather than drag out the Vitamix, I used my stick blender. A few tomato pips survived, but good enough for me!

    Thanks for the recipe.

    Reply

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