Zucchini Vegetable Soup

This zucchini vegetable soup is light, cozy and ready in about 30 minutes. Tender zucchini, sweet carrots, onion and garlic simmer in a savory vegetable broth with just a splash of olive oil, salt and black pepper. It is the kind of simple, wholesome soup you can make on a busy weeknight with ingredients you probably already have, and it is a great way to use up summer zucchini or a few vegetables waiting in the fridge.

Why You’ll Love This Zucchini Vegetable Soup

• Only 8 simple ingredients: fresh vegetables, broth, olive oil and seasoning.
• Quick and easy: one pot and about 30 minutes from start to finish.
• Light and nourishing: naturally vegan, dairy-free and gluten-free.
• Budget friendly: a smart way to use extra zucchini and carrots.
• Easy to customize: add potatoes, bell pepper or herbs to make it your own.

Ingredients for Zucchini Vegetable Soup

• 1 tbsp olive oil
• 1 cup onion, diced
• 1 cup carrot, diced
• 2 cloves garlic, minced
• 2 cups zucchini, diced
• 2 cups vegetable broth
• Salt, to taste
• Black pepper, to taste

Ingredient Notes

Zucchini: Choose small to medium zucchini that feel firm and heavy. They have fewer seeds and hold their shape better in soup. There is no need to peel them.

Carrot and onion: Dice them about the same size as the zucchini so everything cooks evenly. Yellow or white onion both work well.

Vegetable broth: Low-sodium broth lets you control the salt. Chicken broth works too if you do not need the soup to be vegetarian.

Olive oil: Just one tablespoon is enough to soften the vegetables and add a gentle richness.

How to Make Zucchini Vegetable Soup

Step by Step

1. Sauté the base. Heat the olive oil in a medium pot over medium heat. Add the onion and carrot with a pinch of salt and cook for 5 to 6 minutes, stirring often, until the onion is soft and translucent.
2. Add the garlic. Stir in the garlic and cook for about 30 seconds, just until fragrant.
3. Add the zucchini. Stir in the diced zucchini and cook for 2 minutes so it picks up the flavor of the base.
4. Simmer. Pour in the vegetable broth and bring it to a boil. Lower the heat, cover partly, and simmer for 12 to 15 minutes, until the carrots are tender and the zucchini is soft but not mushy.
5. Season. Taste and season with salt and black pepper. For a thinner soup, add a splash of extra broth or water and warm through.
6. Serve. Ladle into bowls and serve hot.

This recipe makes a hearty, chunky soup with plenty of vegetables in every spoonful. It serves 2 as a main dish or 4 as a starter.

Tips for the Best Zucchini Vegetable Soup

Cut Evenly

Dice all the vegetables into roughly 1/2-inch pieces so they finish cooking at the same time.

Do Not Rush the Onion

Letting the onion and carrot soften slowly builds a sweet, savory base that makes a simple soup taste rich.

Add Zucchini Later

Zucchini cooks faster than carrots. Adding it after the base has softened keeps it tender instead of falling apart.

Season at the End

Broths vary in saltiness, so taste before adding more salt. A few turns of freshly ground black pepper brighten the flavor.

Finish Fresh

A drizzle of olive oil or a squeeze of lemon right before serving makes the vegetables taste even fresher.

Chunky or Blended?

This soup is delicious chunky, but you can also blend part of it. Use an immersion blender to purée about a third of the pot, then stir it back in for a creamier body while keeping some texture. For a completely smooth zucchini soup, blend it all and thin with a little extra broth.

Variations

• Add potatoes: stir in 1 cup diced potato with the broth and simmer a few minutes longer for a heartier soup.
• Add bell pepper: sauté 1/2 cup diced red bell pepper with the onion for color and a little sweetness.
• Fresh herbs: finish with chopped parsley, basil or dill.
• Beans or pasta: add a can of rinsed white beans or a handful of small cooked pasta to make it more filling.
• A little heat: add a pinch of red pepper flakes with the garlic.

What to Serve With It

Serve this zucchini vegetable soup with crusty bread, a grilled cheese sandwich or a simple green salad. If you love easy vegetable soups, try this Healing Vegetable Soup or The Best Basic Veggie Soup. For another tasty way to use zucchini, make a batch of Zucchini & Carrot Patties to serve on the side.

Storage

Refrigerator: Cool the soup, then store it in an airtight container for up to 4 days.

Freezer: Freeze in portions for up to 3 months. Zucchini softens a little after freezing, so the soup is also great blended after thawing.

Reheating: Warm on the stovetop over medium heat or in the microwave, adding a splash of broth or water if it has thickened.

Frequently Asked Questions

Do I need to peel the zucchini?

No. The skin is tender, adds color and holds the pieces together as they simmer.

Can I use frozen vegetables?

Yes. Frozen diced carrots work well. Frozen zucchini is softer, so add it in the last 5 minutes of cooking.

How can I make this soup more filling?

Add diced potatoes, white beans, lentils or small pasta. Each one turns the soup into a satisfying main dish.

Is zucchini vegetable soup healthy?

Yes. It is packed with vegetables, low in fat and naturally vegan, with just a tablespoon of olive oil for the whole pot.

Can I double the recipe?

Absolutely. Double everything and use a large pot. The simmering time stays about the same.