This cauliflower keto casserole is a delicious and healthy dish that fits perfectly into a low-carb diet. It's creamy, cheesy, and packed with flavor, making it a great option for a comforting meal. Whether you're following a keto lifestyle or just looking for a tasty way to enjoy more vegetables, this casserole is sure to please.
If you're not familiar with heavy cream, it can be found in the dairy section of your supermarket. It's thicker and richer than regular milk, making it perfect for creating a creamy texture in this casserole. Parmesan cheese is another key ingredient that adds a nutty, savory flavor. Make sure to get the grated version for easy mixing.

Ingredients For Cauliflower Keto Casserole Recipe
Cauliflower: The star of the dish, providing a low-carb base with a mild flavor that pairs well with the cheeses.
Cheddar cheese: Adds a sharp, tangy flavor and melts beautifully to create a gooey, cheesy texture.
Heavy cream: Creates a rich and creamy sauce that binds the casserole together.
Parmesan cheese: Adds a nutty, savory flavor and helps to thicken the sauce.
Garlic: Provides a fragrant, savory note that enhances the overall flavor of the dish.
Salt: Enhances the flavors of all the ingredients.
Black pepper: Adds a touch of heat and depth to the dish.
Technique Tip for This Keto Casserole
When steaming the cauliflower, make sure not to overcook it. You want the florets to be tender but still hold their shape. Overcooked cauliflower can become mushy and release too much water, which can affect the texture of your casserole. To avoid this, steam the cauliflower until just fork-tender, then immediately transfer it to a bowl of ice water to stop the cooking process. This will help maintain the cauliflower's texture and prevent your casserole from becoming watery.
Suggested Side Dishes
Alternative Ingredients
cauliflower - Substitute with broccoli: Broccoli has a similar texture and can be used in place of cauliflower for a different flavor profile while still being keto-friendly.
shredded cheddar cheese - Substitute with shredded mozzarella cheese: Mozzarella melts well and provides a milder flavor that can complement the other ingredients.
heavy cream - Substitute with coconut cream: Coconut cream is a dairy-free alternative that maintains the richness and creaminess needed for the casserole.
grated parmesan cheese - Substitute with grated pecorino romano: Pecorino Romano has a similar texture and a slightly stronger flavor, which can add a nice twist to the dish.
minced garlic - Substitute with garlic powder: Garlic powder can be used if fresh garlic is not available, and it provides a similar garlicky flavor.
salt - Substitute with sea salt: Sea salt can be used in place of regular salt and may offer a slightly different mineral content.
black pepper - Substitute with white pepper: White pepper has a milder flavor and can be used if you prefer a less pungent taste.
Other Alternative Recipes Similar to This Keto Casserole
How to Store or Freeze This Keto Casserole
Allow the cauliflower keto casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
Transfer the casserole to an airtight container. If you prefer, you can also cover the baking dish tightly with plastic wrap or aluminum foil.
Store the casserole in the refrigerator for up to 3-4 days. Make sure to label the container with the date to keep track of its freshness.
For longer storage, consider freezing the casserole. Portion the casserole into individual servings to make reheating easier.
Wrap each portion tightly with plastic wrap, then place them in a freezer-safe bag or container. Remove as much air as possible to prevent freezer burn.
Label the containers with the date and contents. The cauliflower keto casserole can be frozen for up to 2-3 months.
When ready to enjoy, thaw the casserole in the refrigerator overnight. This gradual thawing helps maintain the texture and flavor.
Reheat the casserole in the oven at 350°F (175°C) for about 20-25 minutes, or until heated through. You can also use a microwave, but the oven will help retain the dish's original texture.
If reheating from frozen, cover the casserole with foil and bake at 350°F (175°C) for 40-45 minutes, removing the foil for the last 10 minutes to allow the top to crisp up.
Enjoy your cauliflower keto casserole as a quick and delicious meal, perfect for busy weeknights or meal prep!
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the leftover cauliflower keto casserole in an oven-safe dish. Cover it with aluminum foil to prevent it from drying out. Heat for about 15-20 minutes, or until it's warmed through. Remove the foil for the last 5 minutes to let the top get crispy again.
Microwave Method: Transfer a portion of the casserole to a microwave-safe dish. Cover it with a microwave-safe lid or a damp paper towel to retain moisture. Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating. If it's not hot enough, continue to heat in 30-second intervals.
Stovetop Method: Place the leftover casserole in a non-stick skillet over medium-low heat. Add a splash of heavy cream or a bit of butter to keep it moist. Stir occasionally and heat until it's warmed through, about 5-7 minutes.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the cauliflower keto casserole in an air fryer-safe dish. Heat for about 5-7 minutes, checking halfway through to ensure it doesn't overcook. This method will help retain the crispy top layer.
Best Tools for Making This Keto Casserole
Oven: Used to bake the casserole at a consistent temperature of 375°F (190°C) until the top is golden and bubbly.
Steamer basket: Essential for steaming the cauliflower florets until they are tender, which takes about 10 minutes.
Mixing bowl: Needed to combine the steamed cauliflower, cheddar cheese, heavy cream, parmesan cheese, minced garlic, salt, and black pepper.
Baking dish: Used to transfer the mixed ingredients into and spread evenly before baking.
Knife: Required for cutting the cauliflower head into florets.
Cutting board: Provides a safe and stable surface for cutting the cauliflower.
Measuring cups: Necessary for accurately measuring the cheddar cheese, heavy cream, and parmesan cheese.
Measuring spoons: Used to measure the salt and black pepper accurately.
Garlic press: Handy for mincing the garlic cloves quickly and efficiently.
Spatula: Useful for mixing the ingredients together in the mixing bowl and for spreading the mixture evenly in the baking dish.
Oven mitts: Important for safely handling the hot baking dish when removing it from the oven.
Cooling rack: Allows the casserole to cool for a few minutes before serving.
How to Save Time on Making This Keto Casserole
Pre-cut cauliflower: Buy pre-cut cauliflower florets to save time on chopping.
Use pre-shredded cheese: Opt for pre-shredded cheddar cheese and parmesan cheese to skip grating.
Microwave steaming: Steam the cauliflower in the microwave for quicker results.
Pre-minced garlic: Use pre-minced garlic to avoid peeling and chopping.
One-bowl mixing: Mix all ingredients in the baking dish to reduce cleanup time.

Cauliflower Keto Casserole
Ingredients
Main Ingredients
- 1 head Cauliflower cut into florets
- 1 cup Cheddar Cheese shredded
- ½ cup Heavy Cream
- ¼ cup Parmesan Cheese grated
- 2 cloves Garlic minced
- 1 teaspoon Salt
- ½ teaspoon Black Pepper
Instructions
- Preheat your oven to 375°F (190°C).
- Steam the cauliflower florets until tender, about 10 minutes.
- In a mixing bowl, combine the steamed cauliflower, cheddar cheese, heavy cream, Parmesan cheese, minced garlic, salt, and black pepper.
- Transfer the mixture to a baking dish and spread evenly.
- Bake in the preheated oven for 20 minutes, or until the top is golden and bubbly.
- Let it cool for a few minutes before serving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Keto Casserole
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