Potato-Cauliflower Soup
Potato-Cauliflower Soup is a creamy and comforting soup loaded with mashed potatoes, cauliflower, and some Parmesan cheese. Best of all, this luscious and creamy texture soup is then pureed into a silky smooth texture, making it lower in calories and fat for everyone to love!
Our Easy Potato-Cauliflower Soup…
This recipe is another delicious way to use your cauliflower! The recipe is adapted from our homemade recipe for Mashed-Cauli Potatoes. And, it is lusciously creamy and loaded with flavor!
Potato-Cauliflower Soup is not only very tasty, but it’s less starchy compared to a creamy potato soup. Since we’re having some chilly weather again, I decided to make this one.
We love this soup for two reasons: it’s simple and positively delicious! And it makes my first course for dinner ready in no time! It is a simple hack to making a quick soup with veggies, and getting more cauliflower into your family’s diet.
My family loves soups, especially creamy-textured ones, like this one.
Best of all, no one can tell there’s cauliflower in the soup.
How did we make this Potato-Cauliflower Soup?
I had some leftover mashed potatoes from the night before and decided to make a soup with them. So I took the leftover mashed potatoes and mixed them with steamed cauliflower, onions, vegetable broth, and grated Parmesan cheese. And this potato-cauliflower soup was born!
You’ll be amazed at how light, creamy, and so tasty it turned out! It’s the perfect starter to serve for this season, especially on chilly nights.
Serve this soup with your favorite grilled cheese sandwiches, like our Grilled Cheese and Pear Sandwich, or Grilled Cheese & Apple Sandwich, and maybe a green salad for an easy dinner.
Here’s a Great Tip…
If you plan to make mashed potatoes as a side dish for dinner this week, make extra! Then, plan to use the leftovers to make this soup, the very next day. It’s lusciously creamy and delicious tasting. Plus, you can use anywhere from 1 cup to 3 cups of leftover mashed potatoes with this recipe.
Ingredients Needed for Potato-Cauliflower Soup Recipe
For our potato-cauliflower soup recipe, you will need the following ingredients:
- 1 cauliflower- cord, rinsed, cut into pieces
- 3 cups (leftover) mashed potatoes
- 1 Tbsp. extra-virgin olive oil
- 1 onion- chopped
- 4 cups (32-ounce) low-sodium vegetable broth
- 1/4 tsp. ground nutmeg
- 1/2 cup grated Parmesan cheese
- salt and pepper to taste
- extra-virgin olive oil to garnish
How to Make Potato-Cauliflower Soup?
This soup is straightforward and simple. Our full recipe card is located at the bottom of this page, but first, let’s walk through these steps before you start.
- In a large sauce pot, add about 1 inch of water, bring the water to a full boil. Add the cauliflower and cover. Boil cauliflower for about 4 to 6 minutes, until tender. Drain, then mash the cauliflower.
- In the meantime, sauté onions with olive oil in a small pan until onions become soft and translucent, about 3 to 4 minutes. Transfer onions to the large pot with mashed cauliflower. Turn on low heat and stir the onions with cauliflower for about 1 minute.
- Add 3 cups of mashed potatoes, nutmeg, and vegetable broth. Bring soup to a low boil. Then simmer on low heat for about 3 to 5 minutes.
- Add salt and pepper to taste. Turn off heat. Transfer half the mixture to a blender and blend for a few seconds. Transfer back to the pot. Stir in the grated Parmesan cheese.
- Ladle into soup bowls and garnish with a few drops of extra virgin olive oil on top. Serve immediately.
Variations and Recipes Tips
- This recipe calls for 3 cups of mashed potatoes, but you can make this soup with less.
- If you don’t have mashed potatoes, you can certainly use a few potatoes, peeled the skins off, and boil them until tender. Toss them into the mixture with the cauliflower, simmer a few minutes to flavor them, then puree. Be sure to season to your taste.
- You can store this store in a sealed container and keep it chilled in the fridge for up to 3 days.
- It freezes well, and for up to one month.
An Easy & Comforting Soup
Our Potato-Cauliflower Soup is an ideal soup to make for the whole family. It is easily made with leftover mashed potatoes from the night before. As the final touch, I added a few drops of extra-virgin olive oil on top, to give it an additional rich savory flavor to the soup.
Everyone enjoyed it! Try our recipe, and let us know what you think.
ENJOY!!
Are you cooking or baking with us? If you try our delicious potato-cauliflower soup, let us know and leave a comment and a star rating in our recipe card! Have fun and snap a photo, and hashtag it on Instagram and on Pinterest; be sure to tag us @2sistersrecipes.
More Delicious Soup Recipes!
- Creamy Butternut Squash Potato Soup
- Cauliflower Kale Soup with Crunchy Kale
- Potato Broccoli and Cheddar Soup
Potato-Cauliflower Soup
Potato-Cauliflower Soup is a creamy and comforting soup made with leftover mashed potatoes, mashed cauliflower and some Parmesan cheese to create a luscious creamy texture without adding additional butter or cream, making this one fewer in calories and lighter in texture, everyone will love!
Ingredients
- 1 cauliflower- cord, rinsed, cut into pieces
- 3 cups ( leftover) mashed potatoes
- 1 Tbsp. extra-virgin olive oil
- 1 onion- chopped
- 4 cups (32 ounce) low-sodium vegetable broth
- 1/4 tsp. ground nutmeg
- 1/2 cup grated Parmesan cheese
- salt and pepper to taste
- extra-virgin olive oil to garnish
Instructions
- In a large sauce pot, add about 1 to 2 inches of water, bring the water to a full boil. Add the cauliflower and cover. Boil the cauliflower for about 4 to 6 minutes, until tender. Drain, then mash the cauliflower.
- In the meantime, sauté onions with olive oil in a small pan until onions become soft and translucent, about 3 to 4 minutes. Transfer onions to the large pot with mashed cauliflower. Turn on low heat and stir the onions with cauliflower for about 1 minute.
- Add 3 cups of mashed potatoes, nutmeg, and vegetable broth. Bring soup to a low boil. Then simmer on low heat for about 5 minutes.
- Add salt and pepper to taste. Turn off heat. Transfer half the mixture to a blender, cover, and slowly blend for a few seconds to puree the mixture. Transfer back to the pot. Stir in the grated Parmesan cheese.
- Ladle into soup bowls and garnish with a few drops of extra virgin olive oil on top.
- Serve immediately.
Notes
If you plan to make mashed potatoes as a side dish for dinner this week, make extra! And plan to use the leftovers to make this soup, the very next day. You can use anywhere from 1 cup to 3 cups of leftover mashed potatoes with this recipe.
Nutrition Information:
Yield: 6 servings Serving Size: 1 cupAmount Per Serving: Calories: 255Total Fat: 9.9gCarbohydrates: 25.3gFiber: 2.4gSugar: 2.3gProtein: 14g
Happy Cooking! 🙂
Thanks for stopping by!
xo anna and liz
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Weeknight Dinners Made Easy
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What a delicious soup! I've definitely been in soup mode lately and this sounds like it would hit the spot.
What a great way to use left overs! This soup looks perfect for a fallish day. Thank you!
Soup Perfection!
Hey Anna & Liz! This soup looks great and I love that you used leftover mashed potatoes. I never know what to do with those, as they never taste the same the next night unless you slather them in gravy that is. Cauliflower soup is one of our favorite soups so I'm sure with the addition of mashed potatoes, it would be even better. xoxo, Jackie
Anyone who is able to take something as mundane sounding as cauliflower and potatoes and put them together in a soup that looks this delicious, beautiful, and appetizing, is in possession of nothing less than pure talent. Great job with this post; I love it!
Thanks Dan for the awesome comment. You are so sweet, and a great guy!
My husband has been requesting cauliflower soup for some time now – but I never thought to add potatoes – I think that's brilliant! Beautiful soup – love the olive oil garnish 🙂
Thanks Tricia. My husband is always skeptical when I am experimenting with food, especially when its for dinner; but he absolutely LOVED this one, and that's not always the case in my house. I hope your family will enjoy it as much. 🙂