I was never a big fan of cauliflower until I started exploring low-carb cooking. When a friend on a keto diet mentioned missing twice-baked potatoes, I remembered seeing a recipe from Kalyn’s Kitchen (an amazing low-carb food blogger who deserves full credit for the inspiration) for a cauliflower version. Skeptical but curious, I decided to give it a try.
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That first bite was a revelation. The cauliflower was creamy, cheesy, and had that wonderful smoky hint from the bacon. While I’m not one to claim something tastes exactly like something else, this dish genuinely captures the comforting essence of twice-baked potatoes without all the carbs.
I’ve now made this Twice Baked Cauliflower Casserole more times than I can count, and it’s become a staple at holiday gatherings. Even family members who “don’t like cauliflower” ask for seconds. If you’re missing potatoes on your low-carb journey or simply looking for a delicious vegetable side dish, this recipe might just become your new favorite.
Why This Low-Carb Side Dish Works So Well
This isn’t just another cauliflower recipe—it’s a game-changer for those following keto or low-carb diets for several reasons:
- Make-ahead friendly – Can be prepared in advance and baked when needed
- Perfect texture – Overcooking the cauliflower creates a smooth, creamy consistency similar to potatoes
- Rich flavor profile – The combination of cheeses, bacon, and green onions creates layers of flavor
- Satisfying substitute – Provides the comfort of traditional potato dishes with a fraction of the carbs
- Holiday-worthy – Elegant enough for special occasions but easy enough for weeknight dinners
- Family-friendly – Appeals to low-carb dieters and regular eaters alike
Twice Baked Cauliflower Ingredients
Here’s a list of what you need:
- Cauliflower florets – The low-carb base that becomes creamy when properly cooked
- Butter – Adds richness and a silky mouthfeel to the mashed cauliflower
- Green onions – Provide a mild, fresh onion flavor and appealing color contrast
- Cooked bacon – Contributes smoky flavor and crispy texture contrast
- Shredded Cheddar cheese – Creates a gooey, melty texture and savory flavor
- Sour cream – Adds tanginess and creaminess to mimic twice-baked potatoes
- Cream cheese – Helps thicken the mixture and adds a velvety texture
How to Make Twice-Baked Cauliflower Casserole
- Steam cauliflower until soft.
- Place cauliflower into a large mixing bowl and add melted butter, sliced green onions, shredded Cheddar cheese, cooked bacon, sour cream, and cream cheese.
- Place the mixture in a blender or food processor.
- Puree until smooth. Taste and season with salt and black pepper if desired.
- Place the cauliflower cheese mixture in a 2-quart casserole dish and sprinkle the top with additional cheese and bacon.
- Bake at 350°F for 20 to 25 minutes.
If you don’t have a blender or food processor, you can mash the cauliflower mixture with a potato masher.
Twice Baked Cauliflower
Ingredients
- 2 1/2 pounds cauliflower
- 2 tablespoons butter melted
- 2 tablespoons sliced green onions
- 2 cups shredded cheddar cheese divided use
- 1/2 cup chopped bacon cooked, divided use
- 1 cup sour cream
- 2 tablespoons cream cheese optional
Instructions
- Steam the cauliflower until soft. This can be done in an Instant Pot for 7 minutes for super creamy cauliflower or 5 minutes for more texture, followed by a quick release.
- Preheat the oven to 350°F.
- Place the steamed cauliflower into a large bowl. Add the butter, green onions, 1 cup of shredded cheddar, 1/4 cup of bacon, sour cream, and cream cheese (if desired) and mix with an electric mixer until smooth.
- Transfer the mixture to a 2-quart casserole dish, top with the remaining cheddar cheese and bacon, and bake for 20 to 25 minutes.
Video
Nutrition
Delicious Flavor Variations
One of the best things about this recipe is how customizable it is. Here are some creative ways to adapt it to your taste preferences:
Cheese Variations:
- Smoky Option: Use smoked Gouda or smoked Cheddar for an enhanced smoky flavor
- Spicy Kick: Substitute Pepper Jack for some or all of the Cheddar
- Italian Twist: Add 1/4 cup grated Parmesan along with the Cheddar
- Mild Version: Use Monterey Jack or Colby for a milder flavor profile
Flavor Boosters:
- Garlic Lover’s Version: Add 2-3 cloves of minced garlic or 1/2 teaspoon garlic powder
- Herb-Enhanced: Mix in 1 tablespoon fresh thyme or rosemary (or 1 teaspoon dried)
- Caramelized Onion: Replace green onions with 1/2 cup caramelized onions
- Extra Savory: Add 1 teaspoon Dijon mustard to the mixture
- Spice it Up: Include a pinch of cayenne pepper or a dash of hot sauce
Storing, Freezing and Reheating Baked Cauliflower Casserole
Refrigerator Storage:
Store cooled leftovers in an airtight container in the refrigerator for up to 5-7 days. The flavors often improve after a day, making this a perfect make-ahead dish.
Freezer Instructions:
- Complete Casserole: Cook fully, cool completely, then wrap tightly in plastic wrap followed by aluminum foil. Freeze for up to 3 months.
- Unbaked Casserole: Prepare up to the baking step, cover tightly, and freeze for up to 3 months. Thaw completely in the refrigerator before baking.
Reheating Methods:
You may need to add 5-10 minutes to the baking time if starting from cold
Microwave (Quick option):
- Place individual portions in a microwave-safe dish
- Heat in 30-second increments, stirring between each, until warmed through
- For best results, cover with a damp paper towel to maintain moisture
Oven (Best for whole casserole):
- For the frozen casserole: Thaw completely in the refrigerator (24-48 hours)
- Preheat oven to 325°F (165°C)
- Cover with aluminum foil and heat for 20-25 minutes
- Remove foil and continue heating for 5-10 minutes until heated through and bubbly
Make-Ahead Strategy:
- Prepare casserole up to 2 days ahead and store unbaked in the refrigerator
- When ready to serve, allow to sit at room temperature for 30 minutes, then bake as directed
Favorite Low Carb Recipes
- Keto Broccoli and Cheese
- Roasted Cauliflower with Coconut Oil
- Bacon Egg Bites Recipe
- Chicken Alfredo Dip
- Cabbage and Sausage
- Keto Baked Pork Chops
- Butter Poached Fish
- Peruvian Chicken
- Homemade Italian Sausage
- Cajun Shrimp
Popular Vegetable Side Dishes
Be sure to check out more of my easy side dish recipes and the best low carb recipes.
This twiced baked cauliflower is delicious
This was so delicious. It went great with my keto lifestyle change. I paired it w8th a delicious ribeye.
Fixed for a small group of people and was a big hit
Just wondering has anyone subbed Greek yogurt for the sour cream?
I don’t think yogurt cooks very well.
This looks great. I am trying Keto so more recipes would be AWESOME.
Delicious! So easy and adaptable! Will make again and again and again!
I nuked half a cut up cauliflower 10 m uncovered, Stirred and covered, nuked 4 more minutes,
removed condensation from lid, stirred out more steam nuked 4 more mins covered, stir let sit
til barely steaming, season w/ salt pepper, thyme, garlic powder, put in foood processor with butter
and cream cheese, process 1 minute, remove into bowl add cheddar & bacon bits nuke 1 minute
This is an amazingly delicious keto dish. One of the best I’ve ever eaten. Tastes just like a Twice Baked Potato without all the carbs. 😋😋😋
I am glad you enjoyed it!
I made this recipe exactly as the author stated. I used my steamer basket to cook the cauliflower until it was super soft. My husband thought it was a twice baked potato dish! This is a recipe worth printing and keeping in your favorite recipe box.
I am glad I made the cut!
This twice baked cauliflower looks so zesty and tasty! Absolutely love your creative idea! Thanks for sharing, Stephanie!
I am just learning about the keto diet this week. my surgeon suggested I do this to prepare for an upcoming procedure. to say I am overwhelmed is an understatement. Your recipes are awesome and I appreciate your guidance along this learning journey. Love cauliflower and spaghetti squash and am so happy to see they are approved to eat. thanks you so much!
This looks delish…..I just happen to have a head of cauliflower in the fridge…Thanks so much for this….Trying low carb…its hard…
I hope you enjoy it!
In video it appears you are putting all ingredients in instant pot. If so I would like to have your recipe for cauliflower prepared this way.
Do you mean you want the recipe on how to steam cauliflower?
Thank you for this, I needed a new side dish. Stemmed broccoli gets old.
Looks great!! The wife and I are both doing low carb!! Would be great to see some great low carb ideas!! Thanks
Can’t wait to try it! I really like cauliflower, this recipe is perfect for me.
Would love more keto diet recipes please!