Healthy Crockpot Tomato Basil Soup

Name: Healthy Crockpot Tomato Basil Soup
Prep time: 15 min
Cook time: 5 h
Total time: 5 h 15 min
Yield: 6 servings
Ingredients: 2 cans (14 oz each) diced tomatoes; 1 cup vegetable broth; 1 small onion, chopped; 3 cloves garlic, minced; 1 cup fresh basil leaves, chopped; 1 tsp dried oregano; Salt and pepper to taste; 1 tbsp balsamic vinegar; 1/2 cup shredded carrots (optional); 1/2 cup bell pepper, diced (optional)

Highlighted under: Healthy & Light

I absolutely love making Healthy Crockpot Tomato Basil Soup because it's not just easy, it’s also packed with flavor and nutrition! The slow-cooking method allows the tomatoes and basil to meld together beautifully, creating a comforting bowl of goodness. I can throw all the ingredients into the crockpot in the morning and return home to a warm and hearty soup. Plus, it's a fantastic way to sneak in some extra veggies for my family—no one can resist a creamy tomato soup.

Created by

Heidi Lawson

Last updated on 2026-01-13T04:46:18.583Z

Making this Healthy Crockpot Tomato Basil Soup was a delightful experience. I experimented with using fresh basil from my garden, which elevated the flavor profile significantly. Slow-cooking the tomatoes with garlic and onions truly enhances the natural sweetness of the soup. I also decided to add a splash of balsamic vinegar, which gave it a lovely depth without adding many calories.

What I found particularly helpful was blending part of the soup to create a creamy texture without the need for heavy cream. This method kept it light and enjoyable, perfect for any time of the year. The kids even loved it, and they usually aren’t fans of vegetable soups!

        You’ll Love This Soup Because
        Rich and vibrant tomato flavor with a hint of fresh basil
Nutritious and low-calorie perfect for any meal
Convenient one-pot cooking means less cleanup!

      

Understanding the Ingredients

Each ingredient in this Healthy Crockpot Tomato Basil Soup plays a vital role in creating a depth of flavor and texture. The canned diced tomatoes serve as the soup's base, rich in natural sugars that caramelize and enhance the overall taste during slow cooking. Fresh basil not only adds a burst of freshness, but the slow heat helps release essential oils, resulting in an aromatic experience. If you can’t find fresh basil, you can substitute it with two teaspoons of dried basil, but the flavor won't be quite the same.

Onions and garlic are the foundational aromatics of this soup. Sautéing them prior to adding them to the crockpot can deepen their flavors, making the soup taste more complex. If you're short on time or prefer a hands-off approach, you can skip this step—the slow cooker will still yield a tasty result. Additionally, customizing add-ins like shredded carrots or bell peppers can enhance the nutrition profile; these ingredients will soften beautifully in the slow cooker without overwhelming the final flavor.

Cooking Techniques for Perfection

To achieve the best texture and flavor in your soup, it’s crucial to stick to low heat settings for the longest duration. Cooking on low for about five hours allows the tomatoes to break down and the flavors to meld beautifully. If you’re in a hurry, you can cook on high for about 2-3 hours; just keep an eye on the vegetables to ensure they don’t overcook. The goal is a rich and thick consistency, where the soup is glossy and vibrant in color.

When blending the soup, using an immersion blender is convenient, allowing you to puree directly in the crockpot without transferring hot liquids. Blend until smooth, paying close attention to any unblended vegetable pieces, as these should be incorporated for a cohesive texture. If you prefer a chunky soup, blend only half of the mixture, leaving some pieces intact for a heartier experience. Be cautious to not over-blend, which can lead to a puree that lacks the comforting texture of a well-balanced soup.

Ingredients

Ingredients for Healthy Crockpot Tomato Basil Soup

Gather the following ingredients for a delicious homemade soup.

Soup Ingredients

2 cans (14 oz each) diced tomatoes
1 cup vegetable broth
1 small onion, chopped
3 cloves garlic, minced
1 cup fresh basil leaves, chopped
1 tsp dried oregano
Salt and pepper to taste
1 tbsp balsamic vinegar
1/2 cup shredded carrots (optional)
1/2 cup bell pepper, diced (optional)

Add these fresh ingredients to enhance your soup's flavor and nutrition!

Instructions

Instructions for Preparation

It's simple to prepare this soup; just follow these steps!

Prepare the Vegetables

Chop the onion, mince the garlic, and prepare any additional vegetables such as carrots or bell peppers.

Combine Ingredients

In your crockpot, combine the diced tomatoes, vegetable broth, chopped onion, minced garlic, fresh basil, dried oregano, and any optional ingredients.

Season the Soup

Add salt, pepper, and balsamic vinegar to taste. Stir well to mix all ingredients thoroughly.

Cook the Soup

Cover and cook on low for about 5 hours, or until the vegetables are tender.

Blend and Serve

Using an immersion blender, blend the soup until smooth. Serve hot, garnished with additional basil if desired.

Your soup is ready! Enjoy it with crusty bread or a light salad for a complete meal.

Pro Tips

For a creamier texture without added calories, blend a portion of the soup and return it to the pot before serving.

Storage and Reheating Tips

This soup is perfect for meal prep, making it a convenient choice for busy weeks. After cooking, let it cool completely before transferring it to airtight containers. It can be stored in the refrigerator for up to 5 days or frozen for longer storage, typically up to 3 months. If freezing, consider portioning the soup into single servings, which makes reheating easier and reduces waste. Just be sure to thaw it overnight in the fridge for the best results when reheating.

When reheating, you may notice the soup has thickened. Add a splash of vegetable broth or water to thin it out to your desired consistency. Reheat gently on the stove or in the microwave, stirring occasionally to ensure even heating and to prevent scorching. I often check the seasoning again after reheating, as flavors can mellow during storage.

Serving Suggestions and Variations

For an elevated serving experience, consider topping your soup with a drizzle of olive oil, a dollop of Greek yogurt, or a sprinkle of grated Parmesan cheese. Fresh herbs like extra basil or even some parsley add a beautiful finishing touch that enhances its aroma. Pair the soup with warm crusty bread or a side salad for a complete meal that’s both comforting and satisfying.

This recipe is easily customizable, making it fun to experiment! Try adding other vegetables like zucchini or spinach during the final hour of cooking for added nutrients. You can also switch things up by incorporating different herbs such as thyme or rosemary, giving the soup a unique twist while keeping the essence of tomato and basil.

Questions About Recipes

→ Can I use fresh tomatoes instead of canned?

Yes, you can substitute fresh tomatoes. You'll need about 2 pounds of ripe tomatoes.

→ How long can I store leftover soup?

The soup can be stored in the fridge for up to 5 days.

→ Can I freeze this soup?

Absolutely! This soup freezes well. Just make sure to store it in an airtight container.

→ Is this soup vegan?

Yes, all the ingredients are plant-based, making this recipe vegan-friendly.