Healthy Crockpot Tomato Basil Soup

Highlighted under: Healthy Table Creations

I love making this Healthy Crockpot Tomato Basil Soup on busy days when I need a comforting meal without much fuss. The slow-cooking process allows the flavors to meld beautifully, and the hint of basil keeps it fresh and vibrant. You simply toss in all the ingredients, set it, and let the crockpot do its magic. This soup has become a staple in my kitchen, as it’s not only healthy but also incredibly satisfying, making it perfect for cozy nights in or when entertaining friends.

Adeline Morris

Created by

Adeline Morris

Last updated on 2026-01-11T21:34:07.435Z

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When I first crafted this Healthy Crockpot Tomato Basil Soup, I wanted a dish that was both nourishing and delicious. I experimented with various tomatoes and herbs, and I found that using fresh basil really made a difference in flavor. It's truly incredible how letting the crockpot work its magic enhances the taste and consistency of the soup over several hours.

One of my favorite tips is to use quality tomatoes—whether using fresh or canned—because they really are the foundation of this soup. Also, the option to blend it smooth or leave it chunky gives you the freedom to customize the texture to your preference!

Why You'll Love This Recipe

  • Rich and flavorful tomato base infused with fresh basil
  • Effortless preparation—just toss it in the crockpot!
  • Perfect for meal prep; it keeps well and tastes even better the next day

The Role of Fresh Ingredients

Using fresh basil is essential for achieving that bright, aromatic flavor in the soup. The quality of your basil can significantly influence the overall taste. Look for vibrant, green leaves without any browning or wilting. If fresh basil isn't available, you can substitute with a lesser amount of dried basil, but keep in mind that dried herbs are more concentrated, so start with just 1 teaspoon and adjust to taste.

The crushed tomatoes serve as the backbone of this dish, providing a rich and robust flavor. Opt for high-quality San Marzano tomatoes if possible; they are sweeter and less acidic than standard varieties. This can help balance the flavors in the soup. If you prefer a smoother texture, consider using crushed or pureed tomatoes instead of whole or diced varieties.

Adjusting Texture and Flavor

To achieve your desired soup texture, blending is key. If you prefer a velvety smooth soup, an immersion blender is your best tool. Blend until the mixture is glossy and uniform, which should take about 1-2 minutes. For a chunkier version, blend only half of the soup and stir it back in for a delightful contrast in texture.

Tasting and adjusting seasoning towards the end of cooking is crucial. Depending on the brand of canned tomatoes used, you may need to add a bit of salt or sugar to balance acidity. I suggest starting with small increments—add a pinch of salt or a teaspoon of sugar, stirring well, and tasting before adding more.

Storing and Serving Suggestions

This soup is fantastic for meal prep. After it cools, store it in airtight containers in the fridge for up to a week or freeze for longer storage—up to three months. When reheating, do so gently on the stove over medium heat until warmed through, stirring occasionally to maintain an even temperature.

Serve the soup with a drizzle of olive oil and crusty bread for dipping. For an extra touch, garnish with a few fresh basil leaves or a sprinkle of grated Parmesan cheese. It pairs wonderfully with a simple green salad or grilled cheese sandwiches for a cozy dinner.

Ingredients

Gather these fresh ingredients for your delicious soup:

Ingredients

  • 2 cans (28 oz each) crushed tomatoes
  • 1 large onion, chopped
  • 4 cloves garlic, minced
  • 1 cup vegetable broth
  • 1 cup fresh basil leaves, chopped
  • 2 teaspoons sugar
  • Salt and pepper to taste
  • 1 tablespoon olive oil

Make sure everything is fresh for the best flavor!

Instructions

Follow these simple steps to make your soup:

Prepare the Ingredients

Chop the onion and garlic, and gather your crushed tomatoes and basil.

Add to Crockpot

In the crockpot, combine the crushed tomatoes, chopped onion, minced garlic, vegetable broth, sugar, salt, and pepper. Stir well.

Cook on Low

Cover and cook on low for 6 hours, allowing the flavors to develop.

Blend and Serve

After cooking, blend the soup using an immersion blender for a smooth texture, or keep it chunky if preferred. Stir in the fresh basil before serving.

Serve hot and enjoy your homemade soup!

Pro Tips

  • For extra creaminess, feel free to add in a splash of heavy cream or a dollop of Greek yogurt before serving.

Troubleshooting Tips

If your soup turns out too acidic, a splash of cream can help to mellow out the tangy flavor. You can also add a small pinch of baking soda, which acts as a neutralizer. Start with a little and taste as you go—too much can alter the flavor more than intended.

A common issue is the soup being too thick. If you find that the consistency is not what you're looking for, simply stir in additional vegetable broth or water until you reach your desired thickness. Keep in mind that the soup will also thicken a bit more when cooled, so it’s okay to keep it on the thinner side.

Variations to Try

For a creamier soup, consider stirring in a splash of heavy cream or coconut milk just before serving. This not only adds richness but also creates a beautiful contrast with the tomato base. You might also experiment with adding sautéed vegetables, such as bell peppers or zucchini, during the slow-cooking phase for added nutrition.

If you want to amp up the protein content, adding cooked lentils or beans is an excellent choice. Just make sure to add them in the last hour of cooking if using canned varieties to ensure they stay intact and aren't mushy. This modification will turn your soup into a more filling meal.

Questions About Recipes

→ Can I use fresh tomatoes instead of canned?

Absolutely! If using fresh tomatoes, you'll need about 5-6 medium-sized ones, preferably Roma for the best flavor.

→ How do I store leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 5 days. Reheat on the stove or in the microwave.

→ Can I freeze this soup?

Yes, you can freeze the soup for up to 3 months. Just make sure to cool it completely before transferring it to freezer-safe containers.

→ Is this soup vegan?

Yes, this soup is vegan as it uses vegetable broth and no dairy ingredients.

Healthy Crockpot Tomato Basil Soup

I love making this Healthy Crockpot Tomato Basil Soup on busy days when I need a comforting meal without much fuss. The slow-cooking process allows the flavors to meld beautifully, and the hint of basil keeps it fresh and vibrant. You simply toss in all the ingredients, set it, and let the crockpot do its magic. This soup has become a staple in my kitchen, as it’s not only healthy but also incredibly satisfying, making it perfect for cozy nights in or when entertaining friends.

Prep Time15 minutes
Cooking Duration6 hours
Overall Time6 hours 15 minutes

Created by: Adeline Morris

Recipe Type: Healthy Table Creations

Skill Level: Easy

Final Quantity: 4 servings

What You'll Need

Ingredients

  1. 2 cans (28 oz each) crushed tomatoes
  2. 1 large onion, chopped
  3. 4 cloves garlic, minced
  4. 1 cup vegetable broth
  5. 1 cup fresh basil leaves, chopped
  6. 2 teaspoons sugar
  7. Salt and pepper to taste
  8. 1 tablespoon olive oil

How-To Steps

Step 01

Chop the onion and garlic, and gather your crushed tomatoes and basil.

Step 02

In the crockpot, combine the crushed tomatoes, chopped onion, minced garlic, vegetable broth, sugar, salt, and pepper. Stir well.

Step 03

Cover and cook on low for 6 hours, allowing the flavors to develop.

Step 04

After cooking, blend the soup using an immersion blender for a smooth texture, or keep it chunky if preferred. Stir in the fresh basil before serving.

Extra Tips

  1. For extra creaminess, feel free to add in a splash of heavy cream or a dollop of Greek yogurt before serving.

Nutritional Breakdown (Per Serving)

  • Calories: 180 kcal
  • Total Fat: 6g
  • Saturated Fat: 1g
  • Cholesterol: 0mg
  • Sodium: 320mg
  • Total Carbohydrates: 27g
  • Dietary Fiber: 5g
  • Sugars: 10g
  • Protein: 4g