Creamy cheddar cauliflower broccoli soup made easy in the instant pot or stovetop. This delicious low carb soup is wholesome, vegetarian and packed with vegetables.


A warm bowl of creamy cheddar cauliflower broccoli soup is comfort food at its finest. This soup brings together a trinity of nutritious low carb vegetables – cauliflower, broccoli and celery simmered in a creamy broth with sharp cheddar cheese, garlic and seasonings. Made quickly and easily in the instant pot or stovetop, this vegetarian soup is wholesome, nourishing and incredibly satisfying. Read on for an easy cheddar cauliflower broccoli soup recipe made in just 30 minutes active time.

What makes this cheddar cauliflower broccoli soup healthier?

Here are some of the key reasons why this cheddar cauliflower broccoli soup recipe is a healthier option:

  1. It’s packed with vegetables – Cauliflower and broccoli are nutritious low-carb vegetables that provide antioxidants, vitamins, minerals and fiber. Loading up on veggies boosts the nutrition in every bowl.
  2. Uses reduced fat dairy – The soup is made with milk rather than heavy cream, cutting back on saturated fat and calories while still providing creaminess. Sharp cheddar cheese adds flavor without going overboard on cheese.
  3. It’s naturally gluten-free – By using gluten-free ingredients like vegetables, broth and cheese, this soup avoids gluten, making it safe for those with celiac disease or gluten intolerance.
  4. Lean protein from broth – Opting for vegetable or chicken broth over fatty cuts of meat keeps this soup lower in calories and fat. The broth contributes protein from the chicken or vegetables.
  5. Balance of textures – Blending half the soup gives it some creamy smoothness while retaining vegetable texture rather than being 100% pureed.
  6. Flavor from herbs/spices – By flavoring the soup with garlic, herbs and spices, you can limit salt while maximizing big flavor to make each serving satisfying.

So in summary, packing in nutritious low-carb veggies, using lighter yet flavorful ingredients, and finding the right textural balance makes this cheddar broccoli cauliflower soup better for you than other cream-based soups.

Ingredients in cauliflower broccoli cheddar soup

To make this flavorful soup, you will need:

  • 2 heads cauliflower, cut into florets
  • 2 heads broccoli, cut into florets
  • 1 large onion, diced
  • 2 stalks celery, sliced
  • 3 cloves garlic, minced
  • 32 oz vegetable or chicken broth
  • 2 cups milk
  • 8 oz sharp cheddar cheese, shredded
  • Salt, pepper and other seasonings

How To Make Healthy Broccoli Cheddar Soup?

Here are some tips for making a healthier broccoli cheddar soup:

  1. Use reduced-fat milk and low-fat sharp cheddar cheese. This keeps the soup creamy while cutting back on saturated fat and calories.
  2. Increase the amount of broccoli, and add other veggies too like cauliflower, onions, carrots or celery. Loading up on veggies boosts nutrition.
  3. Use chicken or vegetable broth instead of heavy cream for the base. Broth adds savory flavor without the extra calories.
  4. Season generously with garlic, herbs and spices instead of salt for maximum flavor without excess sodium.
  5. Blend about half the soup to make it creamy, leaving some broccoli chunks too for texture and fiber. Avoid pureeing the whole thing.
  6. Top each bowl with healthy garnishes like sliced almonds, olive oil croutons or seed & nut mixes instead of bacon or fried onions.
  7. Balance out the richness by serving with a fresh, bright salad with vinaigrette or a piece of crusty whole grain bread.
  8. Make your own broth using veggie scraps or bone broth from chicken carcasses for maximum nutrition.

With some simple subs and smart techniques, you really can make a broccoli cheddar soup that’s good for you and still totally comforting!

Stovetop or Instant Pot

This versatile cheddar cauliflower broccoli soup can be made either on the stovetop or in the instant pot.

Stovetop Method

If making on the stovetop, start by sautéing the onions and celery in a large soup pot for 5 minutes. Next, add the broccoli, cauliflower and garlic. Sauté for another 5 minutes. Now pour in the broth and milk. Bring the soup to a gentle boil then lower the heat. Let it simmer for 15-20 minutes until the vegetables are very soft. Turn off the heat and use an immersion blender to puree the soup right in the pot. Finally, stir in the shredded cheddar cheese until it has fully melted. Season the soup to taste with salt, pepper and any other seasonings of choice.

Instant Pot Method

To make this soup in the instant pot, simply place all the vegetables, garlic, broth and milk in the inner pot. Close and seal the instant pot. Select high pressure for 5 minutes. Use quick release once the time is complete. Now blend the soup with an immersion blender. Finally stir in the shredded cheese until fully incorporated. Adjust seasonings as needed.

What To Serve With Cheddar Cauliflower Broccoli Soup?

There are lots of delicious options for sides and garnishes that pair beautifully with cheddar cauliflower broccoli soup:

  • Bread – Serve crusty whole grain bread or savory biscuits to dip into the creamy, cheesy soup.
  • Salad – A fresh green salad or spinach salad complements the soup nicely. The vinegar dressing cuts the richness.
  • Whole Grains – Chewy barley, farro or brown rice add satisfying texture, fiber and protein.
  • Cornbread – A little sweet cornbread with honey butter is heavenly with the soup for dipping.
  • Roasted Veggies – Roasted broccoli, cauliflower, Brussels sprouts or butternut squash.
  • Chicken – Grilled or baked chicken breast or tenders adds lean protein.
  • Bacon – Crispy cooked bacon bits or pancetta lend a salty, smoky crunch.
  • Cheese – More melty shredded cheese like Gruyere, Gouda or Swiss works beautifully.
  • Herbs – Chives, parsley or cilantro offer freshness and color contrast.
  • Nuts/Seeds – Toasted pecans, almonds or pepitas for crunch.

There are so many possibilities for soup toppings and pairings! Get creative with vegetables, whole grains, proteins and garnishes.

Storing & Freezing Tips

To store any leftover cheesy cauliflower broccoli soup:

Short Term Storage

Let the soup cool to room temperature before transferring to an airtight container. Refrigerate for 3-5 days.

Long Term Storage

For longer term storage, this soup freezes very well. Allow the soup to cool completely then transfer to freezer bags or containers. It will keep for 2-3 months in the freezer. Thaw overnight in the refrigerator before reheating on the stovetop over medium heat until hot and bubbly.

More Soup Recipes

If you love this cheddar cauliflower broccoli soup, try out more delicious and healthy soup recipes:

Broccoli Cheddar Soup

Another brother recipe to this one. A classic creamy, velvety soup made with broccoli and cheddar cheese.

Cauliflower Soup

A simple pureed low carb cauliflower soup made extra creamy with cheese and cream. Perfect keto soup.

Broccoli Soup

A quick broccoli cheddar cheese soup made with fresh or frozen broccoli cooked in chicken broth and blended smooth.

Cheddar Cauliflower Broccoli Soup Recipe FAQs

Get answers to some frequently asked questions about this easy cauliflower broccoli soup recipe:

Can I freeze the soup?

Yes! This soup freezes very well for up to 2-3 months. Let it cool completely before transferring to airtight freezer bags or containers. Thaw overnight in the fridge before reheating.

Can I make it vegetarian?

Absolutely. To make a vegetarian cheddar cauliflower broccoli soup, simply swap the chicken broth for vegetable broth. It will be just as delicious.

Is this soup gluten free?

Yes, this soup is naturally gluten free. There are no gluten containing ingredients. Just be sure to use certified gluten free broth.

How spicy is this soup?

This cauliflower broccoli cheese soup recipe has no added spice. Simply adjust any seasonings like cayenne powder or hot sauce to taste preferences.

What goes well with this soup?

Serve this flavorful soup with crusty bread, crackers or even as a side to sandwiches or burgers. You could also top it with bacon bits, chives or sautéed mushrooms.


This easy cheddar cauliflower broccoli soup is a quick and delicious weeknight dinner option that is budget-friendly, nourishing and incredibly comforting. Made with simple pantry staples either on the stovetop or instant pot, it is suitable for any season. Adjust seasonings to taste and add fun topping for a soup that is sure to satisfy!

Myra Henry created the Keto Taco Salad blog to share my favorite delicious low-carb recipes without sacrificing flavor. when i started the keto diet 2 years ago, I discovered a love for making healthy Mexican dishes like keto taco salads. My blog features easy keto taco salad recipes and tips for keto success.

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