Low Carb Vegetable Soup Recipe for Easy Healthy Meals

Updated On: October 8, 2025

When it comes to nourishing your body without piling on the carbs, a vibrant, hearty vegetable soup is the perfect solution. This low carb vegetable soup recipe is packed with fresh, crunchy veggies and fragrant herbs that create a delicious, comforting meal without the heaviness of starchy fillers.

Whether you’re looking for a light lunch, a cozy dinner, or a wholesome snack, this soup fits the bill.

What makes this recipe truly special is its balance of flavors and textures — tender zucchini, crisp celery, and bright tomatoes mingle in a savory broth that warms you from the inside out. Plus, it’s incredibly versatile, allowing you to customize it with your favorite low carb veggies or spices.

If you’re on a keto or low carb diet, or simply want a healthy way to enjoy your vegetables, this soup is a must-try.

Let’s dive into the details of this delightful, easy-to-make vegetable soup that will quickly become a staple in your kitchen!

Why You’ll Love This Recipe

This low carb vegetable soup is not only delicious but also incredibly healthy and simple to prepare. It’s perfect for those who want to reduce their carbohydrate intake without sacrificing taste.

Here’s why you’ll love it:

  • Low Carb & Nutrient Dense: Packed with fiber-rich vegetables that keep you full while supporting digestion and overall health.
  • Easy & Quick to Make: Ready in under 40 minutes with minimal prep – ideal for busy weeknights.
  • Versatile: You can easily swap in your favorite low carb veggies or bulk it up with some protein like tofu or beans.
  • Flavorful & Comforting: The combination of herbs and spices brings warmth and depth to every spoonful.
  • Diet Friendly: Suitable for keto, paleo, vegan, and gluten-free diets.

Ingredients

  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 3 cloves garlic, minced
  • 2 medium zucchinis, diced
  • 2 celery stalks, sliced
  • 1 medium bell pepper, diced (any color)
  • 1 cup green beans, trimmed and cut into 1-inch pieces
  • 1 cup chopped tomatoes (fresh or canned, no sugar added)
  • 4 cups vegetable broth (low sodium preferred)
  • 1 teaspoon dried thyme
  • 1 teaspoon dried oregano
  • 1/2 teaspoon smoked paprika
  • Salt and pepper to taste
  • Fresh parsley for garnish (optional)

Equipment

  • Large soup pot or Dutch oven
  • Cutting board
  • Sharp chef’s knife
  • Wooden spoon or heatproof spatula
  • Measuring spoons
  • Measuring cups
  • Ladle for serving

Instructions

  1. Prepare your vegetables: Wash and dice the onion, zucchini, bell pepper, and tomatoes. Slice the celery and green beans. Mince the garlic cloves carefully.
  2. Heat the olive oil: In your large soup pot, warm the olive oil over medium heat. Once hot, add the diced onion and sauté for 4-5 minutes until translucent and soft.
  3. Add garlic and spices: Stir in the minced garlic, dried thyme, oregano, and smoked paprika. Cook for another 1-2 minutes until fragrant, stirring constantly to avoid burning.
  4. Add the vegetables: Toss in the zucchini, celery, bell pepper, green beans, and chopped tomatoes. Stir well to combine all the ingredients.
  5. Pour in the broth: Add the 4 cups of vegetable broth to the pot. Season with salt and pepper to taste. Stir everything together, ensuring the vegetables are submerged in the liquid.
  6. Simmer the soup: Bring the soup to a gentle boil, then reduce the heat to low. Cover the pot and let it simmer for 20-25 minutes, or until all the vegetables are tender but still retain a slight crunch.
  7. Adjust seasoning: Taste your soup and adjust the salt, pepper, or spices as needed. If you prefer a little more heat, consider adding a pinch of chili powder — you can learn to make your own flavorful blend here.
  8. Serve and garnish: Ladle the soup into bowls and garnish with fresh parsley for a pop of color and freshness.

Tips & Variations

“For an even richer texture, blend half the soup with an immersion blender, then mix it back in to create a creamy yet chunky consistency.”

  • Protein Boost: Add diced tofu, cooked chickpeas, or shredded chicken for a heartier option.
  • Spice it Up: Incorporate a pinch of cayenne or red pepper flakes to give your soup a spicy kick.
  • Seasonal Veggies: Swap out zucchini for cauliflower or broccoli depending on the season and availability.
  • Herb Variations: Try fresh basil or rosemary instead of thyme and oregano for a different flavor profile.
  • Make it Creamy: Stir in a splash of coconut milk or heavy cream (if not dairy-free) for a luscious finish.
  • Batch Cooking: This soup freezes beautifully, making it a great candidate for meal prep and easy weeknight dinners.

Nutrition Facts

Nutrient Amount per Serving (1 bowl)
Calories 110
Carbohydrates 12g
Fiber 4g
Protein 3g
Fat 7g
Sodium 420mg
Vitamin A 30% DV
Vitamin C 45% DV

Serving Suggestions

This soup is wonderful on its own for a light meal or paired with a simple side salad for a more filling lunch or dinner. If you want some crunch alongside, try serving it with a small portion of low carb crackers or a slice of almond flour bread.

For a Mediterranean twist, drizzle some extra virgin olive oil and a squeeze of lemon juice on top just before serving.

Looking for more delicious and healthy recipes? Check out our A to Z Vegetarian Recipes for Every Meal and Occasion for inspiration, or explore Ancient Grains Vegetarian Recipes for Healthy Delicious Meals to complement your low carb journey.

Conclusion

This low carb vegetable soup recipe is a fantastic way to enjoy a wholesome meal that’s both satisfying and light. With fresh vegetables, fragrant herbs, and simple ingredients, it’s easy to prepare and perfect for any day of the week.

Whether you’re following a low carb diet or simply want to eat more veggies, this soup is a flavorful option that won’t leave you feeling deprived.

It’s also versatile enough to suit your taste preferences and dietary needs, so feel free to experiment with different veggies and spices. Don’t forget to bookmark this recipe and try some of our other healthy creations like the Vegan Fall Soup Recipes To Warm Your Cozy Evenings for more cozy, nutrient-packed meals.

Happy cooking!

📖 Recipe Card: Low Carb Vegetable Soup

Description: A hearty and healthy low carb vegetable soup packed with fresh veggies and flavorful herbs. Perfect for a light meal or a comforting snack.

Prep Time: PT15M
Cook Time: PT30M
Total Time: PT45M

Servings: 4 servings

Ingredients

  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 2 cups zucchini, chopped
  • 1 cup celery, sliced
  • 1 cup green beans, trimmed and chopped
  • 1 cup spinach leaves
  • 4 cups vegetable broth
  • 1 teaspoon dried thyme
  • 1/2 teaspoon black pepper
  • 1/2 teaspoon salt
  • 1/4 teaspoon red pepper flakes (optional)

Instructions

  1. Heat olive oil in a large pot over medium heat.
  2. Add onion and garlic; sauté until translucent, about 5 minutes.
  3. Add zucchini, celery, and green beans; cook for another 5 minutes.
  4. Pour in vegetable broth and add thyme, salt, pepper, and red pepper flakes.
  5. Bring to a boil, then reduce heat and simmer for 20 minutes.
  6. Stir in spinach and cook for an additional 2 minutes.
  7. Adjust seasoning if needed and serve hot.

Nutrition: Calories: 120 kcal | Protein: 4 g | Fat: 7 g | Carbs: 10 g

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Photo of author

Marta K

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