As I pulled the casserole from the oven, a wave of warmth and comfort enveloped the kitchen, teasing my senses with a combination of creamy cheese and tender chicken. You won’t believe how easy it is to recreate this Cheesy Chicken Riced Cauliflower Casserole, a dish that not only satisfies your cravings for comfort food but also offers a healthy, low-carb twist. Perfect for busy weeknights, this one-pan meal allows for quick prep with minimal cleanup, making it a favorite among home chefs. Packed with wholesome ingredients, including nutrient-rich riced cauliflower and an array of savory spices, this casserole will quickly become a staple in your culinary repertoire. Ready to serve up some deliciousness that nourishes both the body and soul? Let’s dive in!

Why is this casserole a must-try?

Easy to Make: This comforting casserole requires minimal prep, making it perfect for busy weeknights.

Flavor Explosion: The blend of creamy cheeses and savory spices creates a mouthwatering taste sensation that will have everyone coming back for seconds.

Low-Carb Delight: With riced cauliflower as the base, this dish fits perfectly into a low-carb lifestyle without sacrificing any richness.

One-Pan Wonder: Enjoy a complete meal without the fuss of multiple pots and pans; cleanup is a breeze!

Crowd-Pleasing Comfort: Whether for family dinners or gatherings, this Cheesy Chicken Riced Cauliflower Casserole is guaranteed to impress and satisfy all taste buds.

To make your meal even heartier, consider pairing it with a light side salad or some steamed veggies for a balanced dish!

Cheesy Chicken Riced Cauliflower Casserole Ingredients

For the Casserole

Avocado Oil – A healthy cooking oil perfect for sautéing chicken and veggies; olive oil works as a great substitute.
Onion – Adds a wonderful aromatic flavor; shallots can be used for a milder touch.
Frozen Riced Cauliflower – Serves as a low-carb base that mimics traditional rice; freshly riced cauliflower is a great alternative.
Kosher Salt – Enhances overall flavor; adjust to your taste preference.
Ground Black Pepper – Offers warmth and seasoning; consider white pepper for a subtle flavor twist.
Garlic – Fresh minced garlic adds a punch; garlic powder can be used if you prefer a milder flavor.
Milk – Contributes creaminess to the sauce; almond milk or other non-dairy options work well to keep it dairy-free.
Garlic Powder – Adds an extra layer of garlic flavor; feel free to omit if you want a lighter taste.
Italian Seasoning – Infuses a lovely herbaceous taste; fresh Italian herbs will brighten the flavor even more.
Dijon Mustard – Gives the sauce a delightful tang; yellow mustard can serve in a pinch, but the taste will differ.
Cream Cheese – Provides a rich, creamy base for the sauce; softened mascarpone can give an exciting twist.
Plain Greek Yogurt – Adds creaminess with a hint of tang; you can swap with sour cream if you desire.
Baby Spinach – Brings color and important nutrients; kale or swiss chard are excellent substitutes.
Cooked Shredded Chicken Breasts – Your main protein source; use shredded turkey or rotisserie chicken for convenience.
Cooked White Jasmine Rice – Adds structure to the dish; quinoa can work well for a gluten-free alternative.

For the Topping

Shredded Cheese – Create a bubbly, cheesy layer; feel free to mix in different cheeses to customize the flavor.

Step‑by‑Step Instructions for Cheesy Chicken Riced Cauliflower Casserole

Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). While it warms up, generously grease a 9×13-inch baking dish to prevent sticking. This makes for easier cleanup later and ensures every creamy, cheesy bite of the casserole will be perfectly baked.

Step 2: Season the Chicken
Take the chicken breasts and pat them dry with paper towels. Sprinkle a mix of kosher salt, ground black pepper, and garlic powder over both sides. This seasoning will infuse your Cheesy Chicken Riced Cauliflower Casserole with a burst of flavor, ensuring the chicken is tasty throughout.

Step 3: Sear the Chicken
In a large skillet, heat 2 tablespoons of avocado oil over medium-high heat. Carefully add the seasoned chicken breasts and sear them for about 4-5 minutes on each side, until they turn golden-brown and develop a beautiful crust. This step helps lock in the juices.

Step 4: Bake the Chicken
Transfer the seared chicken to your prepared baking dish and pop it into the oven. Bake the chicken for 20-25 minutes, or until its internal temperature reaches 165°F (74°C). This ensures that your chicken is cooked thoroughly and safe to serve in your delicious casserole.

Step 5: Rest and Shred the Chicken
Once baked, take the chicken out of the oven and let it rest for about 5 minutes. This resting period keeps the meat juicy. Afterward, shred or dice the chicken into bite-sized pieces, ready to mix into the casserole.

Step 6: Rice the Cauliflower
While the chicken rests, prepare the riced cauliflower. Using a food processor or box grater, finely chop the cauliflower until it resembles rice. This low-carb base will provide a great texture in your Cheesy Chicken Riced Cauliflower Casserole.

Step 7: Cook the Riced Cauliflower
In the same skillet you used for the chicken, add a bit more avocado oil and heat it on medium. Toss in the riced cauliflower and sauté for about 3-4 minutes until it becomes tender-crisp. If needed, add a splash of water to avoid sticking.

Step 8: Remove Moisture (Optional)
To ensure the best texture, you may want to remove excess moisture from the cooked cauliflower. Place the sautéed cauliflower in a clean kitchen towel and gently squeeze to release any water, enhancing the consistency of your casserole.

Step 9: Make the Roux
In a saucepan over medium heat, melt 2 tablespoons of butter until bubbly, then whisk in 2 tablespoons of flour. Keep stirring for about 2-3 minutes until it turns light golden brown. This roux will create a rich base for your cheesy sauce.

Step 10: Create the Sauce
Gradually pour in 1 cup of milk and 1 cup of chicken broth into your roux, whisking continuously. Allow this mixture to cook for 5-7 minutes, or until it thickens into a creamy sauce, perfect for enveloping all the ingredients in your Cheesy Chicken Riced Cauliflower Casserole.

Step 11: Add Cream Cheese and Seasonings
Lower the heat and whisk in 4 ounces of cream cheese, along with the Italian seasoning and Dijon mustard. Stir until completely smooth and creamy, infusing the sauce with herbaceous flavors that will elevate your casserole.

Step 12: Combine Ingredients
In a large mixing bowl, combine the shredded chicken, sautéed riced cauliflower, and about two-thirds of the cheese sauce. Mix well to ensure everything is evenly coated in that delicious creamy goodness, creating a harmonious blend in your casserole.

Step 13: Transfer to Dish
Carefully spoon the chicken and cauliflower mixture into the greased baking dish. Spread it out evenly using a spatula, ensuring that every corner is filled with this healthy, comforting blend, setting up for a delightful baked dish.

Step 14: Layer with Sauce and Cheese
Pour the reserved cheese sauce over the top of the casserole and spread it evenly. Then, sprinkle the remaining shredded cheese on top, creating a bubbly, cheesy layer that will bake to perfection when your casserole cooks.

Step 15: Bake the Casserole
Place the baking dish in the oven and bake for 25-30 minutes until the casserole is bubbling and golden brown on top. If the cheese appears to be browning too quickly, lightly cover the dish with aluminum foil to prevent burning.

Step 16: Broil (Optional)
For an extra crispy topping, switch your oven to broil and cook for an additional 2-3 minutes. Keep a close eye on it to prevent burning, achieving that perfectly charred top that everyone loves in a casserole.

Step 17: Rest and Serve
Remove the casserole from the oven and let it rest for about 10-15 minutes before serving. This allows the layers to set slightly, making it easier to cut. Garnish as desired and enjoy your delicious Cheesy Chicken Riced Cauliflower Casserole!

How to Store and Freeze Cheesy Chicken Riced Cauliflower Casserole

Fridge: Store leftovers in an airtight container for up to 3 days. For best results, reheat in the oven to maintain a creamy texture.
Freezer: This casserole can be frozen for up to 2 months. Wrap tightly in foil or place in a freezer-safe container to prevent freezer burn.
Reheating: Thaw overnight in the fridge before reheating. Bake in a preheated oven at 350°F (175°C) until heated through, about 25-30 minutes.
Make-Ahead: You can assemble your Cheesy Chicken Riced Cauliflower Casserole in advance, cover tightly, and store it in the fridge for up to a day before baking.

Cheesy Chicken Riced Cauliflower Casserole Variations

Feel free to mix things up with these delightful variations to make this recipe your own!

Dairy-Free: Substitute cream cheese and milk with plant-based alternatives like cashew cream or almond milk for the same creamy texture.
Extra Veggie Boost: Stir in chopped bell peppers, broccoli, or even zucchini to add nutrition and color without adding many carbs.
Spice It Up: Add a pinch of red pepper flakes or cayenne pepper for a wonderful kick. This twist will satisfy your taste buds and give a flavorful heat.
Cheese Lover’s Twist: Swap in gouda, pepper jack, or a blend of different cheeses to create a unique flavor profile that excites the palate.
Protein Options: Not a fan of chicken? Use cooked shredded turkey, pork, or even sautéed mushrooms for a vegetarian variation. Whichever protein you choose, it’ll be delicious!
Herbed Delight: Add a handful of fresh herbs like basil, parsley, or dill to the cheese sauce for a fresh, bright flavor that elevates the dish even further.
Nutty Flavor: Incorporate a handful of chopped nuts like toasted almonds or walnuts for a crunchy texture that pairs wonderfully with the creamy casserole.

Transforming your Cheesy Chicken Riced Cauliflower Casserole allows your creativity to shine. For more delicious inspiration, check out my recipe for French Onion Chicken or give a delightful twist with my Parmesan Chicken Cheesy recipe!

Make Ahead Options

These Cheesy Chicken Riced Cauliflower Casserole is perfect for meal prep enthusiasts! You can assemble the entire casserole up to 24 hours in advance, covering it tightly with plastic wrap before refrigerating. To keep the ingredients fresh and flavorful, be sure to add a layer of cooking spray to prevent sticking. When you’re ready to bake, simply remove the wrap and pop it into a preheated oven, adding an extra 5-10 minutes to the baking time as the casserole will be cold from the fridge. This way, you’ll enjoy your comforting dish with minimal fuss—just as delicious and satisfying as if made fresh!

What to Serve with Cheesy Chicken Riced Cauliflower Casserole

Enhance your meal experience with delightful sides that balance flavors and textures beautifully.

Garlicky Green Beans: Fresh green beans sautéed with garlic add a nice crunch and vibrant color, perfectly complementing the creamy casserole.
Crisp Side Salad: A light, mixed greens salad with a tangy vinaigrette offsets the richness of the casserole, refreshing your palate with each bite.
Roasted Broccoli: Tender, roasted broccoli with a sprinkle of lemon elevates your meal with earthy flavors and provides a nutritious complement to the dish.
Cauliflower Mash: This creamy, low-carb alternative to mashed potatoes echoes the riced cauliflower, offering a cohesive and comforting dining experience.
Steamed Asparagus: Lightly steamed asparagus with a drizzle of olive oil enhances the dish with its unique flavor and bright green pop on the plate.
Chilled Cucumber Salad: A refreshing cucumber salad with a hint of yogurt dressing provides a cooling contrast to the warm, cheesy casserole, balancing the meal beautifully.
Sparkling Water with Lemon: This fizzy drink adds a refreshing zest, cleansing the palate and enhancing the flavors of your comforting meal.
Chocolate Avocado Mousse: For dessert, a rich and creamy mousse made from avocado satisfies your sweet tooth while keeping it healthy and low-carb.

Expert Tips for Cheesy Chicken Riced Cauliflower Casserole

Season Generously: Properly season your chicken before searing for maximum flavor. Many cooks skip this step, leading to bland chicken.
Resting Period: Don’t skip letting your chicken rest after baking. This crucial step ensures the meat retains moisture and juiciness.
Moisture Control: To avoid a soggy casserole, remember to squeeze excess moisture from the riced cauliflower before mixing it in.
Watch the Broil: While broiling for a crispy topping, keep a close eye on your casserole. It’s easy for it to burn, so stay nearby!
Cheese Variations: Feel free to experiment with different cheeses, such as gouda or pepper jack, to customize the flavor profile of your Cheesy Chicken Riced Cauliflower Casserole.

Cheesy Chicken Riced Cauliflower Casserole Recipe FAQs

What is the best way to choose riced cauliflower?
Absolutely! When selecting riced cauliflower, whether fresh or frozen, look for cauliflower that is white and free from dark spots all over. If it’s fresh, it should feel firm and without soft spots, indicating it’s at its peak freshness. For frozen options, ensure the packaging is intact without signs of freezer burn.

How should I store leftovers of my casserole?
Very! You can store leftovers of your Cheesy Chicken Riced Cauliflower Casserole in an airtight container in the refrigerator for up to 3 days. When ready to enjoy, simply reheat in the oven at 350°F (175°C) for about 25 minutes to restore the creamy texture.

Can I freeze the Cheesy Chicken Riced Cauliflower Casserole?
Absolutely! This tasty casserole can be frozen for up to 2 months. Just wrap it tightly in foil or place it in a freezer-safe container. Make sure to label it, so you know what you’ve got ready for a cozy meal later.

What if my casserole turns out watery?
Ah, this can happen! To prevent a watery casserole, make sure to squeeze out excess moisture from the riced cauliflower after cooking. Additionally, if you notice excess liquid while baking, you can let it bake for a few extra minutes to help with evaporation, or stir in a bit of cornstarch dissolved in water to thicken it.

Is this casserole suitable for those with dairy allergies?
Very! For a dairy-free version, simply substitute dairy milk with almond or oat milk and use cashew cream instead of cream cheese. Keep in mind to also avoid using shredded cheese for the topping or choose plant-based cheese alternatives instead to ensure it’s completely dairy-free.

Can I make this casserole ahead of time?
Absolutely! To prepare in advance, you can assemble your Cheesy Chicken Riced Cauliflower Casserole a day before, cover it tightly with foil, and store it in the fridge. When you’re ready to bake, remove the foil and bake as directed, adding a few extra minutes to ensure everything is heated thoroughly. Enjoy hassle-free meal prep!