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This Slow Cooker Tomato Soup is so simple to make and the perfect tomato soup recipe. Made with canned tomatoes and full of flavor it’s a recipe you must try. You will definitely be making grilled cheese to go with this!

Slow Cooker Tomato Soup served in a white bowl.
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Table of Contents

Tomato Soup for the soul:

Tomato soup is one of my all-time favorite, always go-to soup. It’s great on a chilly day, a cloudy day, a rainy day, or a snowy day. Any day of the week is perfect for Tomato Soup.

On days I know I will be busy; I definitely love having my slow cooker. This is one of the easiest Slow Cooker Tomato Soups you can make. You will love the flavors in this soup, and it will definitely become one of your go-to soups as well!

How to make Tomato Soup in the Slow Cooker:

This recipe is SUPER simple to make! You will really appreciate how easy this soup is, and how it tastes so amazing! Add all your ingredients to the slow cooker, give it a mix and cook it.

It is so easy you will be able to make some grilled cheese sandwiches to go along with it! Follow along with this two-step recipe!

ingredients for the tomato soup.

Ingredient Notes:

  • Tomatoes: I used canned Crushed tomatoes and canned Diced tomatoes.
  • Onion: A white onion that has been diced.
  • Seasoning: For seasoning I used dried thyme, oregano, basil, salt, and pepper.
  • Sugar: Regular white table sugar.
  • Vegetable Broth: You can also use chicken broth if that is what you have on hand.
  • Butter: I used unsalted butter.
  • Half & Half: You can find this in the dairy section of your store or make your own with equal parts milk and heavy cream.
closeup of the tomato soup in white bowl.

Directions:

Step One: Add all ingredients to the slow cooker! Give it a mix, and then turn it on! Cook it on high for 4-5 hours or on low for 6-7 hours.

Recipe Tip

If you are nervous your tomatoes may be too acidic, start by adding a teaspoon of baking soda to the soup. That will cut some of the acidity of the tomatoes. Add more if needed, as you want the soup to taste balanced.

adding ingredients for the soup into the slow cooker.

Step two: Once it is cooked, get your Immersion Blender and blend the soup until it is creamy. Serve and top with crackers, parmesan cheese, or some fresh parsley or basil! The kids love to put Goldfish crackers in their tomato soup.

Recipe Tip

 It is essential NOT to add the half and half or milk at this point in the process if you want your soup to be creamier. Adding cold dairy at this point could cause the milk or half & half to curdle. Any dairy needs to be added at the start of the recipe.

using an immersion blender to blend the tomato soup.

Can I make this Slow Cooker Tomato Soup without an immersion blender?

If you don’t have an immersion blender then you can use a regular blender. Just add a few cups at a time blend and repeat until everything is well blended and smooth. It works the same just takes a little more work.

I used my immersion blender and just blended everything right in my slow cooker.

If you love homemade soup, then make sure to check out a few more of my favorites when you are done with this one.

Tomato Soup in the slow cooker.

Can I freeze this soup?

Yes, tomato soup is really simple to freeze.

Once it’s done allow it to cool completely then add it to a large freezer bag or into individual bags for single servings.

Keep in the freezer for 3-4 months. Allow to thaw in the fridge then reheat on the stovetop or microwave.

using a ladle to serve the tomato soup.

Can I make this Slow Cooker Tomato Soup on the stove top?

You can skip the slow cooker if you want and make this soup right on the stove!

The nice thing about making this on the stove top, is you can make it all in one pot as well! Easy dinner and easy cleanup!

Follow the same directions and bring it to a low boil. Use your immersion blender and make it all creamy and smooth!

closeup of the tomato soup in a white bowl.

What to serve with the Tomato Soup:

I love serving tomato soup with a grilled cheese sandwich. It is the classic combo that goes so well together.

I grew up dipping and crushing Saltine crackers in my tomato soup. The kids love putting Goldfish in their soup as well.

dipping grilled cheese into tomato soup.

Try some of my other favorite Slow Cooker Soups:

Slow Cooker Chicken Noodle Soup – Chicken noodle soup is my favorite winter recipe and a must for cold season! This Slow Cooker Chicken Noodle Soup is easy to make and tastes great!

Slow Cooker Taco Soup – My reader’s favorite soup recipe is now made in the slow cooker. This Slow Cooker Taco Soup is simple to make and a favorite all around. Filled then topped with all your taco favorites.

Slow Cooker French Onion Soup – This Slow Cooker French Onion Soup is simple to make and full of flavor. French onion soup is always one of my favorites to order at restaurants and now I love making it at home.

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I would love for you to follow along and discover more amazing recipes.

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5 from 2 votes

Slow Cooker Tomato Soup

By: Jennie Duncan
Easy slow cooker tomato soup that everyone in your family will enjoy. Made with canned tomatoes and full of flavor.
Prep: 5 minutes
Cook: 4 hours
Total: 4 hours 5 minutes
Servings: 5 Servings
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Ingredients 

  • 28 oz Crushed tomatoes, (canned)
  • 30 oz Diced tomatoes, (canned)
  • 1/2 cup White onion, (diced)
  • 1 teaspoon Thyme, (dried)
  • 1 teaspoon Oregano, (dried)
  • 1/2 teaspoon Basil, (dried)
  • 1/2 tablespoon Sugar
  • 1/2 teaspoon Salt
  • 1/4 teaspoon Pepper
  • 2 cups Vegetable broth
  • 4 tablespoons Butter
  • 1 cup Half & half

Instructions 

  • Add all ingredients to the slow cooker. Give it a mix then cover with the lid. Allow to cook for 4-5 hours on high or 6-7 hours on low.
  • Use an immersion blender to blend soup until smooth and creamy. Serve warm and enjoy!

Video

Notes

Tip: If you are nervous your tomatoes may be too acidic, start by adding a teaspoon of baking soda to the soup. That will cut some of the acidity of the tomatoes. Add more if needed, as you want the soup to taste balanced. 
Tip: It is essential NOT to add the half and half or milk at this point in the process if you want your soup to be creamier. Adding cold dairy at this point could cause the milk or half & half to curdle. Any dairy needs to be added at the start of the recipe.

Nutrition

Serving: 2cups | Calories: 240kcal | Carbohydrates: 25g | Protein: 6g | Fat: 15g | Saturated Fat: 9g | Cholesterol: 42mg | Sodium: 936mg | Potassium: 871mg | Fiber: 5g | Sugar: 14g | Vitamin A: 1211IU | Vitamin C: 33mg | Calcium: 170mg | Iron: 4mg
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About Jennie

I'm Jennie! I'm a busy mom of three and I love cooking and sharing easy recipes. From slow cooker meals to casseroles all my recipes are simple to make and ones the entire family will love.

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10 Comments

  2. I used 2 cans of crushed tomatoes & didn’t use any diced. I also left out the onion because I didn’t feel like dicing it lol and left out thyme. This soup was soooooo good!

    Reply

  4. My husband who has been “cooking” since his retirement tried this recipe. ABSOLUTELY BEST tomato soup I’ve ever had!

    Reply

  5. I was looking and looking for a delicious and easy crockpot tomato soup recipe. Im making it right now! Im having ham and egg salad sandwiches to go with it. Thank you for the recipe!

    Reply