Easy 30-Minute Creamy Zucchini Leek Soup (Vegetarian Recipe)

Name: Easy 30-Minute Creamy zucchini Leek Soup (Vegetarian Recipe)
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Ingredients: 2 tbsp olive oil; 3 cups sliced leeks; 1 clove garlic (or 1 tsp garlic powder); 4 cups chopped zucchini; 4 cups vegetable broth (or stock); 1 cup parsley; 1 cup heavy cream (optional but delicious!); salt and pepper; 2 cups cubed hearty bread; 2 tbsp salted butter, melted (if using unsalted butter, season your croutons with a light sprinkle of salt.)

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Last Updated on September 25, 2026 by Sabrina Currie

This easy 30-minute creamy zucchini leek soup (vegetarian recipe) is silky soup that tastes like a midsummer garden. Sweet, mellow leeks, tender zucchini and a handful of bright parsley come together deliciously in this 30-minute soup. Naturally vegetarian and gluten-free.

A bowl of parsley flecked creamy soup topped with toasted croutons.

Why You'll Love This Zucchini Soup

A one-pot soup that's ready in just 30 minutes with no fussy steps or long simmering.
Big flavor from just a few simple and budget-friendly ingredients.
Great for an excess of zucchini. Whether you've grown your own or grabbed a bag of inexpensive local summer squash at the local market.
Kid-friendly and easy to adapt, this mild, creamy soup is a great way to sneak lots of veggies into dinner.
Gluten-free and easy to make vegan.

Ingredients

This nourishing soup uses just a handful of fresh ingredients and comes together fast!

Leeks - These are the sweet, mellow backbone that gives the soup an incredible depth of flavor. Leeks are much milder and sweeter than regular onions and they melt down beautifully when sauteed. Leeks can hide dirt between their layers, so slice them lengthwise and rinse or swish in a big bowl of cold water before using.
Zucchini - You'll need about 2-3 medium zucchini to make 4 cups and there is no need to peel them, because the skin keeps the soup a pretty green and adds fiber to the soup. You can grate or chop them (perfect if you have pre-grated portions of zucchini in your freezer). If you're using very 'mature' or large zucchini, halve them and scoop out the large seeds before using.
Parsley - This is the bright star of the show. Coarsely chop the leaves and tender stems, and stir it in near the end to keep the bright color and fresh, herbaceous flavor.
Vegetable Stock - This is the flavor base, so use one you like enough to sip on it's own. (If making your own, use a combination of onions, celery, carrot, any veggie trimmings like leeks, leeks or mushroom stems, parsley and black peppercorns. I also love adding a piece of kombu for 30 minutes to add extra umami to mine.
Cream - I've listed this as optional because the soup is still delicious without it. But finishing the soup with a little medium or heavy cream gives it an extra silky finish. Add it at the end and to keep it as smooth as possible, don't bring the soup back to a boil after adding the cream.

3 bowls of light, creamy soup topped with croutons on a navy blue linen tablecloth.

Substitutions + Variations

Vegan - Swap the cream for a plant-based cream (unsweetened) such as cashew, coconut or oat cream. Use olive oil or vegan butter for the croutons if making.
Lighter Version - You can omit the cream, use half the amount or use milk instead.
Change Up The Herbs - Swap half the parsley for basil, dill or chives for another delightful garden flavor. Any fresh, soft green herb you love, works well in this soup.
Extra Zip - For added brightness, grate a teaspoon of lemon zest into the soup when adding the parsley. Or for a piquant touch, add a few dashes of Tobasco sauce at the end when seasoning with salt and pepper.
Garnishes - Adding a garnish or two really add textural interest to this soup. Homemade croutons are my favorite. A sprinkle of chopped parsley, chives or salty dried seaweed is another common garnish in my house. Or keep it simple with a drizzle of fresh, grassy-flavored olive oil.

Step-By-Step Instructions

Sliced leeks in a large Dutch oven pot on the stove.

Step 1. Heat the olive oil in a large pot or Dutch oven over medium heat. Add the sliced leeks, 1 teaspoon of salt and ½ teaspoon of ground black pepper. Saute until fragrant and translucent, about 5 minutes. Add minced garlic, stir and cook for 1 more minute.

Chopped zucchini and broth in the pot with the leeks.

Step 2. Add the zucchini and vegetable stock, bring to a boil over high heat, then reduce heat back to medium and let it simmer actively until all the vegetables are soft, about 10 minutes.

A cup of chopped parsley added onto the pot of soup.

Step 3. Stir in the parsley and simmer 5 more minutes.

A stick blender is in the pot of soup and half is pureed, while the one side still looks chunky.

Step 4. Turn off the heat and puree the soup with an immersion blender.

The stick blender in the soup and it is a creamy, homogenous mixture.

Step 5. Or use a standard blender with the center of the lid removed and a tea towel over the top to let steam safely escape, then return to pot.

Cream has been stirred in so the soup is lighter in color.

Step 6. Pour in the cream if using, stir, taste and season with more salt and pepper to your preference. Serve while hot with parsley or croutons for garnish.

A hand scooping up a spoonful of soup from a bowl of soup set on a cloth napkin.

Food + Wine Pairings For Zucchini Leek Soup

There are so many delicious ways to turn a bowl of soup into a full meal. Here are a few favorites from my recipe archives.

Easy Rosemary No-Knead Bread - Chewy and crusty and perfect for mopping up every last drop.
Herb + Chive Butter Board - For an elevated dinner with guests, serve this gorgeous edible-flower butter board alongside warm crusty bread like the one above or your favorite baguette.
Apple Brie Grilled Cheese - Soup and a sandwich is classic. Dunking encouraged!
Greek Spinach Salad - A crisp, tangy side that is the perfect contrast to the creamy soup.
Zucchini Fritters - Love a theme? These cheesy zucchini fritters are kid-approved and will use even more of your zukes.

This soup is light, creamy and full of fresh herbs so it loves a crisp, dry white wine. Like a squeeze of lemon, it lifts the sweet leeks and bright parsley without stealing the show. Here are my personal favorites:

Three bowls of creamy soup garnished with parsley on a wooden table with 3 glasses of white wine behind,

Albariño - You find great bottles of Albariño in the Spanish and Portuguese section. Look for bottles from Rias Baixas in Galicia, Spain, or Alvarinho from Vinho Verde in northern Portugal. It is crisp and citrusy with a touch of minerality to cut through the cream.
Soave - Soave Classico from the Veneto region of northern Italy is dry, smooth with a hint of almond. The nutty freshness of Soave pairs really well with creamy vegetable soups.
Sauvignon Blanc - Normally I tend to New Zealand sauvignon blanc but because this vegetable soup has delicate flavors, a lighter style works better. Try Sancerre or Pouilly-Fume from the Loire Valley for a crisp, lemony white with great minerality. It is the most soup-friendly style.

Why no reds or oak? Oak adds vanilla, toast and buttery richness and this delicious soup already has plenty of creaminess. An oaked wine piles richness on more richness, muting the fresh flavors of parsley and leeks. The tannins in red wines can clash with the sweetness of the leeks and will overpower the soup. A crisp, high-acid white wine does the opposite, cleansing the palate and highlighting other delicate flavors.

Bowl of soup with a side of chopped parsley on a small wooden plate.

Expert Tips

Taste before you salt. Store-bought and homemade vegetable stock vary a lot in saltiness, so treat the salt amounts as a guideline and adjust it to your taste.

FAQ's

How many calories in a serving of this soup?

Can I use frozen zucchini and do I need to change the amount of stock?

Yes, you can absolutely use your frozen zucchini for this. Frozen zucchini releases a lot of extra water, so thaw it first, then drain off excess water and proceed as written using the same amount of stock.

Can I use the dark green tops of the leeks?

For this soup, you only want to use the white and light green parts of the leek. Unfortunately the dark green tops are too tough and fibrous to blend smoothly. However, don't throw them out! Use them to make the stock for this soup or toss them in a freezer bag and save them along with other vegetable trimmings for a batch of homemade broth or stock.

How can I add more protein or make it heartier?

There are a few ways to add protein to this zucchini leek soup. To keep it vegetarian, add a can of navy beans or cannellini beans either before pureeing if you want it smooth, or after pureeing to add chunky texture.
If you aren't vegetarian, you can add in crumbled bacon or cooked and chopped chicken or ham.

Is a zucchini the same thing as a courgette?

Yes! Courgette is the name used in the UK, Australia and much of Europe. Courgette and zucchini are indeed the same vegetable.

How do I clean leeks?

You can do it a few ways, but the main thing is to separate the outer leaves enough to rinse out grit. I like to trim the dark green tops off, then slice the leek lengthwise in half. Hold it under running water and use your hands to gently separate the tops of the leaves, rinsing out any dirt as you go.
If you want your leeks sliced in rounds, trim and slice them, then place them in a big bowl of cold water and swish them around well. Then, lift them out into a colander by hand, leaving the dirt and grit in the bottom of the bowl. After washing, let them drip dry for a few minutes before using.

Can I freeze this soup?

This soup freezes keeps well for up to 3 months in an airtight container but be sure to stir it well after thawing, then warm gently, stirring occasionally. If you are making this ahead of time and planning to freeze it, omit the cream and add it after thawing.