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Slow Cooker Vegetable Soup

This delicious Slow Cooker Vegetable Soup is easy to make with seven simple ingredients and ten minutes of prep time. There’s nothing more comforting than a hot bowl of vegetable soup on a cold day!

Try this easy soup recipe the next time you’re craving a warm and hearty meal. Filled with healthy vegetables and simmered all day, this flavorful meal is sure to hit the spot.

A bowl of Vegetable Soup on a wooden serving board with crackers.

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I like to make homemade soup because it's easy to customize the recipe to suit my family’s preferences. There are so many different combinations of vegetables you can add to your soup to create a delicious meal!

This flavorful soup is delicious enough to be a meal or a starter for your dinner. We like to serve it with crackers, cornbread, or my English Muffin Bread. And, of course, a grilled cheese sandwich always goes well with soup.

Ingredient Notes

See the printable recipe card below for all ingredients, specific measurements, and complete instructions.

Ingredients to make the vegetable soup are set out on the counter.

You can make this homemade vegetable soup with only a few simple ingredients. To make this recipe, you’ll need:

  • Onion - I like to use a yellow onion but you can also use a white onion. The onion adds flavor to the vegetable soup.
  • Potatoes - Yukon gold potatoes, Russet potatoes or red potatoes can be used in this soup.
  • Diced tomatoes - You can use regular diced tomatoes or for more flavor use fire-roasted diced tomatoes.
  • Frozen mixed vegetables - Use your favorite blend of frozen mixed vegetables.
  • Minced garlic - To save time I used jarred minced garlic.
  • Italian seasoning - Adds the perfect balance of flavor to the soup.
  • Vegetable broth - Base of the soup and adds flavor. You can use store-bought vegetable broth or homemade.

Preparing homemade vegetable soup is quick and easy with the help of your slow cooker! Just prep the ingredients and toss them in the crockpot, then let the slow cooker do all the hard work for you. Follow these simple instructions to make your own vegetable soup at home.

How To Make Slow Cooker Vegetable Soup

Before you can start cooking your soup, you’ll need to take a few minutes to prep all the ingredients. Start by finely chopping your onion. Then, peel and dice the potatoes.

Diced potatoes, frozen vegetables, diced tomatoes, and seasonings are added to the slow cooker.
Vegetable broth added to the vegetables in the slow cooker.

Add the onion and potato to the bowl of your slow cooker, along with the diced tomatoes, frozen mixed vegetables, minced garlic, Italian seasoning, and vegetable broth. Stir to mix all the ingredients together until they’re well combined.

Place the lid on top of the crockpot and set it to cook. You can cook the soup on low for 8 hours or high for around 5 to 6 hours. Before serving your vegetable soup, stir to combine all the ingredients together.

Vegetable Soup served in a white bowl.

Soup Variations

In addition to customizing the type of vegetables you use in your own soup recipe, there are a variety of other ways you can change up this easy meal to make it your own! Try these other recipe ideas to create a delicious bowl of soup for your family.

  • Add some meat. This recipe is a great option for a meat-free meal. But that doesn’t mean you can’t add some protein to it if you prefer to enjoy your soup with meat. Add diced chicken, stew meat, beef, ground beef, or ground turkey to the recipe.
  • Mix in some beans. You can keep this a vegetarian meal and still add some extra protein to the recipe with the help of beans. A variety of beans would be delicious in this vegetable soup, including lima beans, kidney beans, pinto beans, and great northern beans.
  • Stir in some pasta. Add a little hardiness to this vegetable soup recipe with the help of pasta. In the last hour of cooking, you can stir in your favorite pasta to give your soup even more depth. Small pasta noodles, like bow tie or elbow macaroni, are great for mixing into your soup recipe.
  • Try different stocks. Using vegetable stock is a great way to keep the meal vegetarian. But if you’re not concerned about using animal products in your soup, you can easily swap out the vegetable stock for beef or chicken broth or stock instead.

Storing, Freezing, and Reheating

To store the leftovers, allow the soup to cool completely, then transfer it to an airtight container. You can keep the soup in the refrigerator for up to 3 days.

This vegetable soup recipe can also be frozen for more long-term storage. Once the soup has cooled completely, transfer it to a freezer safe container or freezer bag. Store the soup in the freezer for up to two months.

To reheat the soup, allow it to thaw in the refrigerator. Then, heat it up in the microwave or on the stovetop in a saucepan over medium heat.

Can I use fresh vegetables instead of frozen?

Yes, but depending on the type of vegetables you choose, you may need to adjust the cooking time, and you may want to sauté them before adding them to the slow cooker.

Can I add meat to this soup?

Ground beef is a great choice to add to the soup. Just cook and drain any fat and add it to the slow cooker with the other ingredients.

Vegetable soup is served in a white bowl with a side of crackers.

If you need more easy soup recipes here are a few of our favorites.

This budget-friendly soup recipe is a warm and comforting meal everyone will look forward to coming home to.

A bowl of Vegetable Soup on a wooden serving board with crackers.

Slow Cooker Vegetable Soup

Author: Judy Wilson
This delicious Slow Cooker Vegetable Soup is easy to make with seven simple ingredients and ten minutes of prep time.
Prep Time 10 minutes
Cook Time 8 hours
Total Time 8 hours 10 minutes
Course Soup
Cuisine American
Servings 5
Calories 183 kcal


  • 1 small onion (finely chopped)
  • 3 medium potatoes (peeled and diced)
  • 15 ounce can diced tomatoes (with juice)
  • 12 ounce bag frozen mixed vegetables
  • 2 teaspoons minced garlic
  • 1 Tablespoon Italian seasoning
  • 32 ounce container vegetable broth
  • 14.5 ounce can vegetable broth


  • Finely chop the onion and dice the potatoes.
  • Add them to a 6-qt or larger slow cooker. Then add the frozen mixed vegetables, diced tomatoes, garlic, and Italian seasoning. Pour in the vegetable broth and stir.
  • Place the lid on the slow cooker and cook on low for 8 hours or high for 6 hours.
  • Once cooked, stir and taste the soup and adjust the seasoning if needed.
  • Serve and enjoy!


To store the leftovers, let the soup cool, then transfer it to an airtight container. You can keep the soup in the refrigerator for up to 3 days.


Calories: 183kcalCarbohydrates: 41gProtein: 6gFat: 1gSaturated Fat: 0.1gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 0.1gSodium: 1217mgPotassium: 892mgFiber: 7gSugar: 6gVitamin A: 4136IUVitamin C: 42mgCalcium: 82mgIron: 3mg
The nutritional information provided is approximate and should only be used as a general guideline. It is an estimate that will vary based on cooking methods and brands of ingredients used.
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