Quick and Easy Zucchini Potato Soup

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This Zucchini Potato Soup is quick and easy using zucchini and instant mashed potatoes. It's a healthy meatless zucchini soup that's hearty enough to eat as a main course, but can also be eaten as a side or appetizer. Perfect for a weeknight dinner or light lunch using fresh or frozen zucchini. Just swap out the chicken broth for vegetable broth to make it vegetarian.

Zucchini Potato soup in a beige bowl with blue paisley napkin and spoon on the side

This Zucchini Soup is popular at the end up summer and during soup season. It was inspired by my Pierogi Soup and this Shredded Zucchini recipe. It uses 2 whole medium zucchini, so it's a great way to use up zucchini. It pairs exceptionally well with these homemade Granny Buns.

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Why You'll Love This Recipe
🥘Ingredients
📖 Variations & Substitutions
🔪Instructions for making Zucchini Potato Soup
🍽Equipment
🌡️Storage
👪 Serving Size
🔢WW Points
Top tip
🥗 What to eat with Zucchini and Potato soup
❔FAQ
Comments & Reviews
🥣Quick and Easy Zucchini Potato Soup Recipe
🥣Quick and Easy Zucchini Potato Soup Recipe
More Creamy Soup Recipes

Why You'll Love This Recipe

Hearty. Although this soup is meatless it's still hearty and filling enough for a meal!
Healthy! This recipe is healthy but you can make it healthier by using a reduced sodium chicken broth, as the instant potato flakes already have a lot of sodium in them. You can also use leftover mashed potatoes (see variations below), but you'll likely need to add a little salt to the recipe to get the desired taste.
Uses Zucchini in any form - you can use fresh or frozen shredded, sliced, or diced or chopped zucchini! It's going to be puréed anyway.
Uses lots of zucchini. This recipe uses 2 medium zucchini (4 cups of shredded zucchini)!

And if you are looking for additional savory zucchini recipes, be sure to try my Zucchini Lasagna and my Potato Perogy Zucchini Boats!

🥘Ingredients

You don't need heavy cream or olive oil for this Potato Zucchini recipe recipe, but you'll need the following ingredients for this Cream of Zucchini Soup:

Zucchini. Zucchini is the star of the show here! Loaded with nutrients and low in carbs and calories, it's a nutrition powerhouse. And since it has a mild taste and tends to take on the flavors of what it's cooked with, it's ideal for soup!
Onion. Onion gives this soup a rich umami flavor and a subtle sweetness. I use white onions because they are slightly milder in taste.
Fresh garlic. Cooked garlic takes on a sweeter, nuttier flavor.
Chicken broth. Chicken broth provides liquid flavoring and is a nice pairing with zucchini and potato.
Water. Thins out the soup and hydrates the potatoes flakes without adding extra sodium (by using stock)
Instant Mashed Potatoes. Instant mashed potatoes (potato flakes) are a well-known thickener for soup. They make this soup creamy and thick without peeling potatoes or waiting for them to cook. * I use Honest Earth or Idahoan brand, but have used Betty Crocker as well.
Sour cream. Sour cream adds richness (and thickness) * I use non-fat
Sharp cheddar cheese. This sharp cheddar cheese adds creaminess and tang to the soup.
Parmesan cheese. Parmesan cheese heightens the cheesy flavor.
Fresh lime juice. Citrus adds depth of flavor to soup.

See recipe card for quantities.

📖 Variations & Substitutions

Zucchini. You can use an equivalent amount of frozen zucchini, but you'll need to defrost and drain excess liquid through a strainer first. You DON'T have squeeze liquid out of it.
Chicken broth. You can use vegetable broth or vegetable stock instead of chicken broth. You can also use a reduced-sodium chicken broth or chicken stock.
Dill. You can use fresh dill instead of dried, but you'll need to double the amount
Onion. I use white, but you could use yellow instead.
Instant Mashed Potatoes. I use Idahoan or Honest Earth, but can use any brand. I prefer to use the creamy or homestyle that have a buttery flavor. If you have leftover fresh mashed potatoes, you can use those instead. ⅓ cup of potato flakes is equivalent to ½ cup prepared, so use that to substitute, but reduce the liquid in the recipe by ¼ cup. However, you'll need to add some butter (or you can use butter or ½ teaspoon extract/flavoring) to get the buttery taste. You will also need to purée the mashed potatoes before adding them, so there's no lumps.
Sour Cream. You can use fat-free, light/low-fat, or regular.
Sharp/Old Cheese. You can use regular, light, or fat-free cheddar cheese. You could also use medium instead of sharp, but it will be less tangy.
Parmesan Cheese. You can use fat-free, light, or regular. You could also use fresh instead of packaged grated parmesan cheese.
Lime Juice. If you use lime juice from concentrate, you'll only need ½ the amount (1.5 tsp)
Toppings: In addition to the garnishes mentioned, you could also top this soup with croutons, crispy fried onions or other fresh herbs such as fresh parsley .

🔪Instructions for making Zucchini Potato Soup

onion, chicken broth, dill, zucchini and water in pot

Step 1: Add broth, garlic, onion, dill, zucchini and water to a medium pot. Bring to a boil, then reduce to medium-low and simmer for 15 minutes.

vegetables being strained with a strainer scoop

Step 2: Strain vegetables, while keeping the broth (set aside) OR remove vegetables with a slotted spoon

zucchini mixture pureed in food processor

Step 3: Puree vegetables in food processor until smooth. Alternatively, you can use an immersion blender to blend the vegetables into the broth. Return pureed vegetable mixture into broth and whisk.

broth with potatoes whisked in and sour cream, parmesan cheese, cheddar cheese and lime juice added to the pot

Step 4: Add instant potatoes and whisk until dissolved. Be sure to turn down to low heat immediately, as the potatoes will quickly bubble up and splatter. You can even remove the pot from the heat to add the other ingredients. Whisk in cheddar cheese, sour cream, parmesan cheese, and lime juice. Keep whisking on low heat until everything is combined and the cheese is melted.

zucchini potato soup being ladled out of pot

Step 5: Remove from heat and serve.

Bowl of zucchini potato soup with garnishes and small white dish of parmesan cheese in the background

Step 6: Garnish with fresh dill, additional Parmesan cheese and grated or sliced zucchini, if desired.

Hint: If you don't like your soup as thick as this, don't add all the instant mashed potatoes at once. Add them to your desired thickness - you can always add more at the end.

🍽Equipment

You will need a soup pot, and either a food processor or an immersion blender for this delicious soup! If you are using a food processor, you'll need either a fine mesh strainer or a slotted spoon to transfer the zucchini mixture into the food processor. *See recipe card for recommended equipment photos and links

Zucchini Potato soup in a beige bowl with blue paisley napkin and spoon on the side and a dish of parmesan cheese in background

🌡️Storage

Store this Potato Zucchini soup in a sealed container in the fridge for up to 5 days. This soup freezes well for up to 3 months in an airtight container.

To reheat: Let it defrost in the fridge overnight and microwave for about 2 minutes. Reheating doesn't affect the creamy texture, nor does reheating it make it too thick.

👪 Serving Size

This Creamy Zucchini Potato Soup recipe makes 8 servings (about 1 ½ cups each). However, you can half, double, or triple the recipe by clicking on the serving number and selecting the number of servings you'd like. The ingredient quantities will automatically adjust.

🔢WW Points

This recipe is Weight Watchers friendly @ 6 WW points for 1.5 cups. You can further reduce the points in this recipe by using fat-free parmesan and fat-free cheddar cheese.

Top tip

Use sodium-reduced chicken broth to reduce the sodium in this soup.

🥗 What to eat with Zucchini and Potato soup

This Shortcut Potato Zucchini Soup pairs well with salads and sandwiches but is also great on its own with bread or buns. These are my favorite dishes to serve with this soup:

buttered granny bun being dipped into a bowl of Zucchini Potato Soup

❔FAQ

Are Potato Flakes and Instant Mashed Potatoes the same thing?

Yes, they are essentially the same thing. When potato flakes are hydrated with water they become instant mashed potatoes.

What do I do if my soup is too thick or thin?

If your soup is to thick, gradually add more chicken broth, whisking and adding until you achieve the desired thickness. If your soup mis too thin, add more potato flakes/instant mashed potatoes. If you don't have that, make a roux (combination of flour and oil) to thicken the soup. Alternatively, you could add cold water mixed with cornstarch to thicken it.

Comments & Reviews

Did you know that commenting and⭐rating recipes is one of the best ways to support your favorite recipe creators? If you loved this recipe, please comment and rate it in the recipe card or share photos on social media using the hashtag #foodmeanderings or tagging @foodmeanderings !

If you are looking for a comforting soup this Creamy Zucchini soup is the perfect solution!