Slow Cooker Creamy Tomato Soup (with hidden veggies!)

Prep Time 10 minutes
Total Time 8 hours 10 minutes
Servings 6 servings

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Tomatoes and vegetables simmer away all day until tender, then they’re pureed to make this ultra creamy, vibrant tomato soup that is secretly loaded with veggies! Your kids will never know!

white bowl of slow cooker creamy tomato vegetable soup on blue towel

I see all kinds of recipes on Pinterest showing parents how to sneak more vegetables into their kids’ food. I pin those kinds of recipes for myself. I hate vegetables. I mean, I’m okay with potatoes. Corn. Cooked carrots and peas are tolerable. But aside from that? No. Way.

Because of this I was always adamant that my child would eat and enjoy her vegetables. When she was a baby, I made sure that she got her fair share before she would get anything remotely sweet. Broccoli. Cauliflower. Green Beans. Squash. The girl eats anything. And, to this day, she will take vegetables over anything else on her dinner plate. I actually have to mix the vegetables in to her food so she eats the rest, and then she gets upset when she sees that others around her get to have their vegetables in a separate pile.

So this recipe is for me. Though my 21 month old absolutely devoured it.

close up image of tomato vegetable soup in white bowl with bread behind

I know, as a somewhat responsible adult, that my body needs a certain amount of these kinds of things to function the way I want it to, so I force myself to eat my vegetables (as long as it’s not broccoli, cauliflower, green beans, brussel sprouts, squash, etc., etc., etc……).

And that is why I love recipes like this one. Recipes that make me feel like I’m eating a seriously decadent tomato soup and none of the vegetables that are discreetly pureed and hidden in it.

I changed the recipe a bit to add in even more vegetables, because when I made it there seemed to be a good amount of liquid for the amount of vegetables the recipe called for. I also added some additional spices and salt. The recipe allows for so much flexibility that you can add any vegetables you want as long as there is enough liquid to cook them in.

*Recipe and photos updated from the original.

*Note: the milk and flour mixture can easily be omitted to make this a gluten and dairy free option. Even without that step, the soup is rich and creamy from the pureed vegetables!

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Slow Cooker Creamy Tomato Soup (with hidden veggies!)

5 from 1 vote
Slow Cooker Creamy Tomato Soup (with hidden veggies) is the best way to sneak some nutrients into the bowl of any picky eater. This flavorful, creamy tomato soup secretly features lots of carrots and celery.
Prep Time 10 minutes
Cook Time 8 hours
Total Time 8 hours 10 minutes
Cuisine American
Course Soup
Servings 6 servings
Calories 210cal


  • 28 oz canned crushed tomatoes or diced tomatoes with juice (798 ml)
  • 4 cups low sodium chicken broth
  • 3 large carrots (peeled and diced)
  • 1 large onion (diced)
  • 2 ribs celery (diced)
  • 2 tablespoons tomato paste
  • 2 cloves garlic (minced)
  • 2 teaspoons salt*
  • 1 teaspoon dried oregano
  • ¼ teaspoon red chili flakes
  • ¼ cup fresh basil (or 1 teaspoon dried)
  • 1 cup evaporated milk or cream
  • 2 tablespoons all purpose flour
  • ½ cup parmesan cheese
  • 2 tablespoons granulated sugar (optional)


  • Add tomatoes, broth, carrots, onion, celery, tomato paste, garlic, salt, oregano and red chili flakes to the slow cooker. Cook on low for 5-6 hours or until vegetables are tender.
  • Add fresh basil if using and blend with an immersion blender in the slow cooker or transfer to the blender or food processor in batches until smooth. Keep warm in the slow cooker.
  • Whisk together milk and flour, and stir into the soup with the parmesan. Let cook in the slow cooker for 15-20 minutes to thicken slightly.
  • Taste and adjust seasonings to your preferences — add sugar to balance out bitterness from the tomato paste if needed.

Nutrition Information

Calories: 210cal | Carbohydrates: 29g | Protein: 12g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Cholesterol: 18mg | Sodium: 1251mg | Potassium: 887mg | Fiber: 4g | Sugar: 17g | Vitamin A: 5770IU | Vitamin C: 18mg | Calcium: 291mg | Iron: 3mg

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Meet Ashley

My name is Ashley Fehr and I love creating easy meals my family loves. I also like to do things my way, which means improvising and breaking the rules when necessary. Here you will find creative twists on old favorites and some of my favorite family recipes, passed down from generations!

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Reader Interactions


  1. Penny says

    Hi Ashley, love your recipe and love adding extra “hidden” veggies when possible. I also add red/yellow/orange peppers, but not green. Instead of flour and milk, I add coconut milk/cream or almond milk and tapioca starch to thicken if needed. We like a thinner soup so usually don’t add the thickener. Lots of rain lately so today is “tomatoe soup day” 🥰
    I love your thinking when cooking/baking….recipes should be a guide line, starting point. Changes are what make it yours! I have always been one to use what’s on hand. That’s how new ideas are born. My husband/kids will say “that was great, can we have it again? My reply is usually, “not exactly the same, but I can try” 😏
    Keep up the great work

  2. Penny says

    Hi Ashley, love your recipe and love adding extra “hidden” veggies when possible. I also add red/yellow/orange peppers, but not green. Instead of flour and milk, I add coconut milk/cream or almond milk and tapioca starch to thicken if needed. We like a thinner soup so usually don’t add the thickener. Lots of rain lately so today is “tomatoe soup day” 🥰

      • Ashley Fehr says

        Hi Angela! This is a slow cooker recipe and not for the Instant Pot, but it can easily be made on the stove top too! Just cover and simmer until the vegetables are all tender, then puree with an immersion blender.

  3. Wendy says

    I’m trying to used less commercially canned and processed foods. Would it be possible to use fresh tomatoes. I would probably use home canned tomatoes, if I had them. Otherwise I love the idea of extra vegetables and it sounds delicious.

  4. Jennifer says

    I am just wondering why the sugar is so high. After looking at the ingredients I don’t see any that would make it such a high number. . .

  5. Annie @Maebells says

    I love how much good stuff is packed in here! I am a big fan of “hidden” fruits and veggies in things. My husband refused to eat vegetables for a long time I had to get super creative with hiding them! 🙂

    • Ashley says

      I can tolerate cooked corn, peas, carrots, potatoes and peppers, and I don’t even really enjoy them all, so I’m always looking for ways to sneak them in! I’m old enough to know what I should be eating and why, but still not willing to get very adventurous.

5 from 1 vote

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