Roasted Cauliflower Soup

Roasted cauliflower soup is a healthy, low carb dinner option that’s perfect for chilly nights. Top it off with some grated cheddar and fresh cracked pepper. Just 5 net carbs per serving.

You guys, I have big news.

I made this cauliflower soup with onions and my husband ate it and asked for seconds.

Roasted Cauliflower Soup

The man has never eaten an onion without complaining (and often gagging, if we’re being honest) so this was a success story.

He doesn’t seem to mind the flavor, but the texture really turns him off, so I’m now on a mission to add onion to all of our soup recipes and see what he thinks!

This healthy cauliflower soup was honestly a big hit with my whole family. My daughter turned her nose up at it when she saw it (let’s be real – it’s not the prettiest soup), but once I convinced her to try a bite, she ate an entire bowl happily.

I’m so happy it’s soup season. We’ll be eating lots of this plus my chicken zoodle soup and my low carb taco soup all winter long!

Roasted Cauliflower Soup

How to make this cauliflower soup recipe:

To start, you’ll want to roast some cauliflower.

Roasted Cauliflower Soup

I buy a bag of cauliflower florets, because it’s easy, but you can buy a head of cauliflower and chop it yourself if you prefer.

Drizzle the cauliflower with olive oil and then sprinkle with a little salt and cayenne. You can swap in paprika if you don’t like the kick. As it is, this really isn’t spicy.

Pop the cauliflower in the oven and let it get nice and toasty for about 20 minutes.

Meanwhile, heat some olive oil in a soup pot or dutch oven and cook some onion and garlic.

Roasted Cauliflower Soup

Once those are soft, add your chicken broth and the roasted cauliflower. Simmer for about 20 minutes.

When the cauliflower is nice and soft, use a potato masher to mash the cauliflower up.

Roasted Cauliflower Soup

It’s not pretty, but man, it tastes so good!!

Add in some heavy cream, cream cheese, and grated cheddar and stir until melty and smooth.

This cauliflower soup is seriously good and so flavorful!

Roasted Cauliflower Soup

More dinner recipes you’ll love: 

Spinach Stuffed Chicken: The most popular recipe on my site – it gets rave reviews!

Jalapeno Popper Chicken: I love the spice of jalapenos in this recipe!

Stuffed Zucchini: If you’re craving pizza, this is a tasty recipe!

Chicken Casserole: Made with cauliflower rice, fresh broccoli, and chunks of chicken.

Roasted Cauliflower Soup

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