Cheesy Cauliflower Casserole

Creamy and cheesy with bacon bits and fresh green onions adding even more flavor, this Cheesy Cauliflower Casserole is irresistible!

Bite size pieces of cauliflower baked in a creamy sour cream and cheese mixture with green onions and plenty of bacon on a stack of small white plates.

Cauliflower Casserole Recipe

This easy cauliflower casserole is delicious and satisfying.  Cauliflower can be an intimidating side dish, but using a couple shortcuts and enhancements like cheese and bacon make this cheesy casserole recipe quite easy!

My Loaded Potato Casserole has been very popular and we wanted a way to lighten that dish up.  A bonus is that this cauliflower casserole recipe is also low-carb and keto. 

Loaded Cauliflower makes a delicious alternative to potatoes. We also have a similar and very popular Low-Carb Crock Pot Cauliflower Casserole. Neither recipe feels like you’re giving up anything to enjoy a delicious vegetable.

Over head view of warm and cheesy cauliflower casserole with melted cheese and bacon on top and garnished with slices of green onion

The first time I made this was for a friend’s birthday party and everyone LOVED it!  It’s popular at easter and this vegetable side dish will be a hit at your family dinner table or potluck. I’ve since gotten several reports of them making the casserole at home!

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My friends were shocked to learn that I used frozen cauliflower.  They love the freshness of the dish and know that frozen cauliflower takes a lot less time to prepare than washing and chopping fresh cauliflower.  Either would work well, but I noticed that frozen cauliflower was a much better value at the grocery store.

Low Carb Potluck Ideas

We had some healthy debate about whether this Cauliflower Casserole is a good side dish or whether it could be a main dish too.  Our crowd is divided, so I guess it depends how hungry you are!

An adaptation with another combination of trending flavors if our Crock Pot Buffalo Bacon Cauliflower Casserole.  Another low-carb snack or appetizer that tastes great with any of these cauliflower dishes is our Salami Roll-Ups.

Soft, creamy and cheese cauliflower casserole on a plate with a fork and the full dish in the background on a red and white plaid napkin

While this veggie casserole does have carbs it is another show stopping recipe with a couple bags of frozen California blend veggies, Baked Vegetable Medley.

Why This Recipe Works:

  • This veggie side dish is super easy to make and can be mixed up in 15 minutes or less
  • Fresh or frozen cauliflower work fine in this recipe
  • This casserole is loaded with flavor and makes eating more vegetables easier
  • It’s easy to add cooked chicken or broccoli to change up the flavor in this classic dish
  • Cauliflower casserole is always popular on the Thanksgiving, Christmas and Easter table and is a perfect low carb vegetable side dish for a potluck
Serving spoon full of delicious cauliflower casserole over top of the dish full

Ingredients Needed:

  • Fresh or frozen cauliflower
  • Sour cream
  • Shredded sharp cheddar cheese
  • Shredded mozzarella cheese
  • Bacon bits
  • Green onions
Ingredients to make cauliflower casserole on a wooden counter top are cheddar cheese, cauliflower florets, mozzarella cheese, green onions, bacon bits and sour cream

How to Make Cauliflower Casserole

  1. Cook cauliflower
  2. Stir half of sour cream cheese and bacon into cauliflower
  3. Place in greased casserole dish
  4. Sprinkle remaining ingredients on top
  5. Bake 15 minutes at 350ºF

Easy Recipe with Cauliflower

I purchased three 12 ounce bags of frozen cauliflower.  They were microwavable, but I wanted to cook all of the cauliflower together in a sauté pan so that I could more closely monitor the doneness.  Sometimes when I microwave vegetables they end up soggy.

Frozen cauliflower par cooking in a Swiss Diamond skillet

I like to toss the cauliflower in one cup of water on medium high heat on the stove top.  Stir every five minutes or so to help the cauliflower cook evenly. 

After about 15 minutes I pull a couple of the biggest pieces out of the pan and cut them in half.  If they’re warm, they’re done.  If they are at all cold, continue to cook for additional 5-minute increments.  The cauliflower should be warm and tender, but not soggy.

I love my Swiss Diamond Sauté Pan that comes in a 3 piece set (two pans & one lid that both both). The pans are a great quality, heat well, have an excellent non-stick coating and this set easily fits in my cook ware drawer.

Drain the water from the pan and add sour cream, half of each of the cheese and half of the bacon. 

Mixing bowl with cooked cauliflower, shredded cheddar cheese, mozzarella cheese, sour cream and bacon

Stir well and place in a greased 9 x 13 casserole dish. 

Cauliflower mixture spread out in a 9 x 13 glass casserole dish with a layer of mozzarella cheese sprinkled over the top

Sprinkle remaining cheese and bacon on top. 

I like to make mozzarella the first layer and put the cheddar cheese on top so it’s more visible.

Top with bacon for a great color contrast and the look that makes your mouth water.

Cheddar cheese and bacon bits sprinkled in layers to add even more flavor to this low carb cauliflower casserole

Bake for 15 minutes at 350º F.  Add chopped green onion on top and enjoy!

This cheesy cauliflower casserole does hold well covered with foil on keep warm in a warming drawer. Just wait to sprinkle green onions on top until ready to serve.

Recipe Tips & Tricks:

  • I save time on this recipe is by purchasing pre-cooked bacon bits.  One pound of cooked bacon chopped into pieces also works well.
  • Cook cauliflower before mixing with other ingredients, but be sure not to over cook to avoid soggy veggies.
  • The amount of cheese and sour cream used can easily be adjusted to better suit your tastes.
Baked keto cauliflower casserole loaded with cheese, bacon and green onions

What Goes Good with Cauliflower?

Other Delicious Side Dishes

Close up serving of baked cauliflower topped with lots of cheese and bacon on a white plate with a fork and the casserole dish full in the back ground

Cheesy Cauliflower Casserole

Servings 10 people
Author: Jennifer
Creamy and cheesy with bacon bits and fresh green onions adding even more flavor this Cheesy Cauliflower Casserole is irresistible!
5 from 2 votes
Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes


  • 36 ounces frozen cauliflower
  • 1 cup water
  • 1/2 cup sour cream
  • 1 1/2 cups shredded sharp cheddar cheese
  • 1 1/2 cups shredded mozzarella cheese
  • 5 ounces bacon bits cooked
  • 3 green onions diced


  • Cook cauliflower in one cup of water on medium high heat on the stove top. Cover pan. 
  • Stir every five minutes or so to help the cauliflower cook evenly. After about 15 minutes test a couple of the biggest pieces out of the pan.  Cut them in half. If they're warm, they're done. If they are cool, continue to cook for additional 5-minute increments until just cooked.
  • Drain the water from the pan and add sour cream, half of each of the cheese and half of the bacon.  Stir well and place in a greased 9 x 13 casserole dish.  
  • Sprinkle remaining cheese and bacon on top. Bake for 15 minutes at 350º F. Add chopped green onion on top and enjoy!


Calories: 236kcalCarbohydrates: 11gProtein: 15gFat: 16gSaturated Fat: 7gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 37mgSodium: 503mgPotassium: 376mgFiber: 4gSugar: 3gVitamin A: 391IUVitamin C: 50mgCalcium: 256mgIron: 1mg

Nutritional Disclaimer

“Plowing Through Life” is not a dietitian or nutrition professional. Any nutritional information shared is an estimate and can vary greatly depending on specific products are used. If calorie count and other nutritional values are important to you, we recommend running the ingredients through an online nutritional calculator of your choice.

Tried this recipe?Mention @PlowingThroughLife or tag #PlowingThroughLife!

Originally published January 7, 2019 with pictures updated on April 19, 2023.


  1. Amanda Anderson says:

    I tried this dish and it is AMAZING!!! I highly recommend it!

  2. Amanda Anderson says:

    5 stars
    Loved this dish!!! I highly recommend it!

    1. Thanks so much! We love it too!

  3. I could really get into eating more cauliflower with a dish like this! Looks delicious and there’s bacon. MMMM, bacon.

    1. Hmm, I’ve never assembled the casserole very far ahead of baking, but I have made and baked the casserole and re-heated leftovers. They taste great. If you give this a try please let me know! Thanks!

  4. Very tasty. Everyone enjoyed it.

    1. So glad you loved it! And thanks for letting me know! I hope you have a great week!

  5. Joni Tombari says:

    Could you share the nutrition information? Thank you

    1. Hi!  I’ve added a tool on the recipe that estimates nutrition information.  Keep in mind that changing ingredients, quantities, servings etc., can change the nutritional value, this is just an estimate.  Hope it helps!

  6. Can you make this with riced cauliflower?

    1. Jennifer @ Plowing Through Life says:

      Yes! I have a friend that has made it a few times with riced cauliflower! Hope you enjoy the recipe!

  7. Christina says:

    5 stars
    Have anyone tried to make this recipe different cooking way?? Like a grill, instant pot or crackpot?

    Just wondering if it would work a different cooking method.

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