Zucchini Summer Squash Soup

Featured in: Family-Style Meals

This vibrant zucchini soup delivers a silky smooth texture with a bright, herbaceous flavor profile. The combination of summer squash, potato, and fresh aromatics creates a balanced bowl that works equally well served hot or chilled.

The preparation comes together in under 15 minutes of active cooking, followed by a gentle simmer that coaxes out natural sweetness. A finishing blend of parsley, basil, and thyme adds layers of freshness, while lemon zest provides a subtle citrus lift.

Optional cream or coconut milk offers luxurious richness, though the pure vegetable base stands beautifully on its own. The result is a versatile, nourishing soup that adapts effortlessly to dietary preferences and seasonal cravings.

Updated on Wed, 28 Jan 2026 08:20:00 GMT
Bright green Zucchini Soup steaming in a white bowl, garnished with fresh basil and a lemon zest swirl. Save to Pinterest
Bright green Zucchini Soup steaming in a white bowl, garnished with fresh basil and a lemon zest swirl. | chromespoon.com

The first time I made zucchini soup, it was during a particularly abundant garden season when our zucchini plants seemed to multiply overnight. Standing in my kitchen surrounded by a small mountain of summer squash, I remembered my grandmother's solution for any vegetable surplus: soup. The silky texture and vibrant green color surprised me that afternoon, and the gentle aroma of herbs filled my kitchen with a promise of summer that's stayed with me ever since.

Last August, my neighbor dropped off yet another basket of homegrown zucchini with an apologetic smile. Instead of the usual zucchini bread panic, I invited her back for dinner and served this soup with crusty bread on the patio. As the evening breeze picked up, we both went for second helpings, our conversation punctuated by the gentle clink of spoons against bowls. Sometimes the simplest meals create the most peaceful moments.

Ingredients

  • Zucchini: The star of the show needs minimal prep and practically melts into silkiness when cooked properly.
  • Potato: The secret thickening agent that creates body without heaviness or flour.
  • Fresh herbs: I use whatever looks best at the market, but the combination of parsley, basil and thyme creates a foundation that complements without overpowering.
  • Lemon zest: That bright back-note that makes people wonder what makes this soup taste so alive.
  • Cream or coconut milk: Just enough to round out the flavors without weighing down the soup.

Instructions

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Build your flavor base:
Heat olive oil in a large pot over medium heat, then add your chopped onion and celery. Listen for that gentle sizzle as they soften for about 4 minutes.
Wake up the garlic:
Add minced garlic and cook just until fragrant, about a minute. Your kitchen should start smelling amazing right about now.
Introduce the stars:
Stir in your zucchini and potato, allowing them to get acquainted with the aromatic base for about 5 minutes. Youll notice the zucchini beginning to soften slightly.
Add the liquid:
Pour in that vegetable broth, bring everything to a gentle boil, then reduce to a simmer. The vegetables will become tender friends during their 15-minute bath.
Herb infusion:
Off the heat, add your fresh herbs and lemon zest. This timing preserves their vibrant flavors and colors.
Blend to silky perfection:
Use an immersion blender for easiest cleanup, or work in batches with a regular blender. Keep blending until you achieve that silky texture that makes this soup special.
Final touches:
Stir in cream or coconut milk if using, then season with salt and pepper to taste. The difference between good and magnificent soup often happens in this final seasoning step.
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Creamy Zucchini Soup served in a rustic ceramic bowl with a crusty bread slice on the side. Save to Pinterest
Creamy Zucchini Soup served in a rustic ceramic bowl with a crusty bread slice on the side. | chromespoon.com

One late-summer evening, I served this chilled with a swirl of cream to friends visiting from the city. We sat in the garden as fireflies began their evening dance, and my usually food-indifferent husband reached for the ladle to serve himself a second bowl. He caught my surprised look and shrugged, saying simply, This tastes like summer feels. In that moment, I understood that sometimes the greatest cooking triumph isnt complexity but capturing a feeling in a bowl.

Serving Suggestions

The versatility of this soup continues to surprise me even after making it countless times. On warm evenings, I serve it at room temperature with a swirl of good olive oil and flaky sea salt. For lunch gatherings, individual cups of chilled soup with a few snipped chives make an elegant starter. When the weather turns unexpectedly cool, we enjoy it hot with grilled cheese sandwiches for dipping. The soup transforms with the temperature, revealing different herb notes depending on how you serve it.

Storage and Make-Ahead

This soup actually improves with a day in the refrigerator, allowing the flavors to meld beautifully. I often make a double batch on Sunday afternoons, keeping half for dinner and saving the rest for quick lunches during the week. If youre planning to freeze portions, I recommend doing so before adding any cream or coconut milk, then stirring that in after reheating. The zucchini flavor stays remarkably fresh even after freezing, unlike many vegetable soups that can taste flat when defrosted.

Variations to Try

After making this soup dozens of times, Ive discovered several variations that work beautifully without straying from the original charm. Sometimes I throw in a handful of corn kernels just before blending, which adds little bursts of sweetness and texture. During herb garden abundance, Ive substituted dill for the thyme, creating a completely different flavor profile that pairs wonderfully with seafood. For dinner parties, tiny ricotta dumplings can transform this into a more substantial first course.

  • For a curried version, add a teaspoon of curry powder when sautéing the vegetables for warmth and depth.
  • Yellow summer squash works beautifully in place of zucchini, creating a sunny golden soup with a slightly sweeter profile.
  • For texture contrast, reserve some small diced zucchini to add after blending, creating little fresh bites throughout.
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Silky Zucchini Soup blended until smooth, topped with fresh herbs and a drizzle of olive oil. Save to Pinterest
Silky Zucchini Soup blended until smooth, topped with fresh herbs and a drizzle of olive oil. | chromespoon.com

Whether served steaming hot with crusty bread on a rainy day or chilled in delicate cups for a summer lunch, this zucchini soup reminds us that simplicity often yields the most satisfying results. Its become not just a recipe in my collection, but a solution for abundance and a celebration of seasons.

Recipe FAQs

Can I serve this soup chilled?

Yes, this zucchini soup works beautifully served cold. The silky texture and bright herbs make it an excellent chilled option for warm weather. Simply refrigerate after blending and serve garnished with fresh herbs.

How long does the soup keep in the refrigerator?

The soup stores well for 3-4 days in an airtight container in the refrigerator. The flavors may develop and deepen over time. Reheat gently on the stove, adding a splash of broth or water if needed to adjust consistency.

Can I freeze this soup?

Yes, this soup freezes well for up to 3 months. Allow it to cool completely before transferring to freezer-safe containers. Thaw overnight in the refrigerator and reheat gently. Note that the texture may be slightly thinner after freezing.

What can I use instead of potato?

You can substitute the potato with an equal amount of peeled and diced butternut squash, parsnip, or cauliflower. These alternatives will provide similar body and creaminess when blended. Keep in mind that each will slightly alter the flavor profile.

How do I make this soup vegan?

Skip the cream entirely or replace it with full-fat coconut milk for a rich, dairy-free version. Coconut milk adds a subtle tropical sweetness that pairs nicely with the zucchini. Ensure your vegetable broth is certified vegan as well.

Can I add protein to make it more filling?

Yes, consider stirring in rinsed white beans, lentils, or shredded chicken during the last few minutes of reheating. You can also serve with a protein-packed side like hard-boiled eggs, nuts, or seeds sprinkled on top.

Zucchini Summer Squash Soup

Light, silky zucchini soup with fresh herbs and lemon zest. Ready in 40 minutes.

Prep time
15 minutes
Cook time
25 minutes
Overall time
40 minutes
Recipe by Marissa Cook


Skill level Easy

Cuisine European

Portion size 4 Portions

Dietary info Vegetarian-friendly, No gluten

What You'll Need

Vegetables

01 2 tablespoons olive oil
02 1 medium onion, chopped
03 2 garlic cloves, minced
04 4 medium zucchinis (approximately 1.75 pounds), sliced
05 1 medium potato, peeled and diced
06 1 stalk celery, chopped

Liquids

01 4 cups vegetable broth
02 1/2 cup heavy cream or coconut milk, optional

Herbs and Seasoning

01 2 tablespoons fresh parsley, chopped
02 1 tablespoon fresh basil, chopped
03 1 teaspoon fresh thyme leaves
04 1/2 teaspoon salt, adjusted to taste
05 1/4 teaspoon black pepper
06 Zest of 1/2 lemon

Garnish

01 Extra fresh herbs, finely chopped
02 Olive oil or cream for drizzling

Directions

Step 01

Sauté aromatics: Heat olive oil in a large pot over medium heat. Add onion and celery, sautéing for 4 minutes until softened and translucent.

Step 02

Bloom garlic: Add minced garlic and cook for 1 minute until fragrant and golden.

Step 03

Build soup base: Stir in sliced zucchini and diced potato. Cook while stirring occasionally for 5 minutes, allowing vegetables to begin breaking down.

Step 04

Simmer vegetables: Pour in vegetable broth and bring to a boil. Reduce heat and simmer partially covered for 15 minutes until vegetables are very tender.

Step 05

Infuse herbs: Remove from heat and stir in parsley, basil, thyme, and lemon zest, allowing flavors to meld.

Step 06

Puree soup: Blend soup with an immersion blender until smooth and silky, or carefully transfer in batches to a blender.

Step 07

Finish and season: Stir in cream or coconut milk if desired. Season to taste with salt and pepper, adjusting for balance.

Step 08

Serve: Reheat gently if needed. Serve hot or chilled, garnished with fresh herbs and a drizzle of olive oil or cream.

Needed equipment

  • Large pot
  • Chef's knife
  • Cutting board
  • Immersion blender or blender
  • Ladle

Allergy Notes

Double-check your ingredients for allergens and always talk to your doctor if you're not sure.
  • Contains dairy if cream is used; substitute with coconut milk for dairy-free preparation
  • Verify broth and cream product labels for hidden allergens

Nutrition details (per portion)

Use these nutrition facts for reference—they don't replace advice from your doctor.
  • Energy (kcal): 130
  • Fat content: 7 grams
  • Carbohydrates: 15 grams
  • Proteins: 3 grams