As I stood in my kitchen, the rich aroma of sizzling garlic and onion wafted through the air, instantly whisking me away to my favorite comfort food memories. It’s this nostalgic blend that brings us to today’s star: the Cheesy Chicken Riced Cauliflower Casserole. This delightful dish not only satisfies those cheesy cravings but also embraces a low-carb lifestyle, making it an ideal weeknight meal. With simple prep and the ability to cater to your unique taste preferences, this casserole is as versatile as it is delicious. Trust me, you won’t be reaching for takeout once you try this wholesome, creamy goodness. So, what are you waiting for? Let’s dive in and create a meal that warms both the heart and the home!

What makes this casserole so special?
Comforting, homemade goodness: This Cheesy Chicken Riced Cauliflower Casserole brings the warmth of home-cooked meals right to your table.
Low-carb satisfaction: Enjoy the cheesy indulgence without the carb load, making it perfect for a healthy lifestyle.
Flexible ingredients: Feel free to swap in your favorite proteins or veggies, like Greek Lemon Chicken or whatever you have on hand.
Quick prep time: In just under an hour, you can prepare a hearty meal that impresses family and friends alike.
Crowd favorite: Perfect for gatherings or busy weeknights, this dish is sure to please even the pickiest eaters.
Experience a new level of comfort food that leaves you feeling satisfied, yet guilt-free!
Cheesy Chicken Riced Cauliflower Casserole Ingredients
Discover the building blocks of this delightful dish!
For the Casserole
- Avocado Oil – 1 tablespoon; prevents sticking and aids in cooking. Alternative: Any neutral oil.
- Diced Onion – ½ medium; adds sweetness and depth of flavor. Alternative: Shallots or leeks.
- Frozen Riced Cauliflower – 12 ounces; this low-carb base mimics traditional rice, providing a hearty texture. Alternative: Fresh cauliflower riced at home.
- Kosher Salt – 1 teaspoon; enhances overall taste, adjust according to dietary restrictions.
- Ground Black Pepper – ½ teaspoon; introduces mild heat and depth to the casserole.
- Minced Garlic – 3 cloves; infuses strong flavor; fresh is recommended. Substitute: Garlic powder (1 teaspoon).
- Low-fat Milk – ½ cup; helps create a creamy sauce. Alternative: Unsweetened almond milk for a dairy-free option.
- Garlic Powder – ½ teaspoon; adds an additional layer of flavor. Alternatively, more fresh garlic can be used.
- Italian Seasoning – 1½ teaspoons; blends savory herbs for depth.
- Dijon Mustard – 1 tablespoon; adds a touch of tanginess; substitute with yellow mustard if necessary.
- Cream Cheese – 4 tablespoons; creates a rich, creamy sauce. Alternative: Neufchâtel for a lighter version.
- Plain Greek Yogurt – ½ cup; enhances creaminess while increasing protein. Alternative: Sour cream.
- Chopped Spinach – 3 cups; boosts nutrition and adds vibrant color. Optional: Any leafy greens, such as kale.
- Cooked & Shredded Chicken Breasts – 3 cups; serves as the main protein source; rotisserie chicken can be used for convenience.
- Cooked White Jasmine Rice – 1½ cups; adds texture; optional for a low-carb version—can be omitted.
For the Topping
- Cheddar Cheese – use your favorite type for the topping; ensure it’s shredded for even melting.
- Fresh Parsley or Chives – for garnish; adds a pop of color and a hint of flavor.
You’ll love how the combination of these ingredients creates a Cheesy Chicken Riced Cauliflower Casserole that feels indulgent yet healthy!
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, lightly grease a 9×13-inch baking dish with cooking spray or a thin layer of avocado oil to prevent sticking. This will ensure your Cheesy Chicken Riced Cauliflower Casserole comes out of the dish beautifully once baked.
Step 2: Prepare the Chicken
Pat your chicken breasts dry using paper towels, then season them generously with garlic powder, onion powder, paprika, Italian herbs, kosher salt, and black pepper. Ensure the seasoning covers the chicken evenly for maximum flavor. This step is crucial, as it enhances the overall taste of the casserole.
Step 3: Sear the Chicken
In a large skillet over medium-high heat, warm 1 tablespoon of avocado oil. Once hot, add the seasoned chicken breasts and sear them for 4-5 minutes on each side until they develop a golden-brown crust. This browning will lock in juices and flavor, setting the stage for your casserole’s deliciousness.
Step 4: Bake the Chicken
Transfer the seared chicken breasts to the prepared baking dish. Bake them in the preheated oven for 15-20 minutes or until the internal temperature reaches 165°F (74°C). This ensures that your chicken is perfectly cooked and safe to eat. Once done, take the dish out and set it aside to cool slightly.
Step 5: Shred the Chicken
After allowing the chicken to rest for about 10 minutes, cover it with foil. Then, using two forks or your hands, shred the chicken into bite-sized pieces. This will allow it to mix seamlessly with the other ingredients in your Cheesy Chicken Riced Cauliflower Casserole.
Step 6: Rice the Cauliflower
If using fresh cauliflower, process the florets in a food processor until they resemble rice grains. Heat a pan over medium heat, add a bit more avocado oil, then sauté the riced cauliflower with salt and pepper for 7-10 minutes until it’s tender-crisp. This base adds a lovely texture to your casserole.
Step 7: Create the Sauce
In a medium saucepan, melt 2 tablespoons of butter over medium heat, then whisk in an equal amount of flour to form a roux. Gradually stir in ½ cup of warmed low-fat milk and ½ cup of chicken broth until the mixture thickens. This creamy sauce will enhance the richness of your Cheesy Chicken Riced Cauliflower Casserole.
Step 8: Incorporate the Cheese
Once the sauce has thickened, mix in 4 tablespoons of cream cheese until melted. Then stir in Dijon mustard, Italian seasoning, and adjusted salt to taste. Combine this decadent sauce with the shredded chicken and riced cauliflower, reserving about ⅓ of the cheese sauce for later.
Step 9: Assemble the Casserole
Spoon the chicken and cauliflower mixture into the greased baking dish, spreading it out evenly across the bottom. This ensures that every bite of your Cheesy Chicken Riced Cauliflower Casserole is full of flavor and creamy goodness, making it a satisfying meal for the whole family.
Step 10: Add Cheese and Bake
Pour the reserved cheese sauce over the top of the casserole, smoothing it out to cover the filling. Sprinkle a generous layer of shredded cheddar cheese on top, ensuring it’s evenly distributed. Bake for 25-30 minutes, or until the cheese is bubbly and golden, creating a delightful crust over your casserole.
Step 11: Broil for a Crispy Finish
For an extra layer of deliciousness, set your oven to broil and cook the casserole for an additional 2-3 minutes. Keep a close eye on it, as the cheese can brown quickly and you want it beautifully crisp without burning. This final touch elevates your Cheesy Chicken Riced Cauliflower Casserole to perfection.
Step 12: Rest and Serve
Once out of the oven, let the casserole rest for 10-15 minutes to allow the flavors to meld and settle. Garnish with fresh parsley or chives for a pop of color. It’s now ready to be served warm, providing a hearty and comforting meal that the whole family will love!

What to Serve with Cheesy Chicken Riced Cauliflower Casserole
Bring your meal to life with these delightful pairings that complement the cozy flavors of your casserole.
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Garlic Bread: The warm, buttery, and garlicky taste of freshly baked garlic bread offers a satisfying crunch that perfectly balances the creamy casserole.
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Steamed Broccoli: Bright green and slightly crunchy, steamed broccoli adds a nutritious punch, enhancing both the flavors and textures of the dish.
If you’re looking for a burst of freshness, simply drizzle fresh lemon juice over the broccoli before serving. It’ll uplift the entire meal!
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Caesar Salad: Crisp romaine, tangy dressing, and crunchy croutons elevate your dining experience with a refreshing contrast to the rich casserole.
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Roasted Asparagus: Tender, lightly roasted asparagus spears with a sprinkle of sea salt bring an earthy flavor that rounds out the dish perfectly.
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Herbed Quinoa: Fluffy and light, herbed quinoa is an excellent choice for those wanting a slight texture under the scrumptious casserole.
Why not include a drizzle of olive oil and a sprinkle of fresh herbs for an extra layer of flavor?
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Chilled White Wine: A light, crisp white wine like Sauvignon Blanc enhances the meal’s overall experience, refreshing your palate between each bite.
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Chocolate Mousse: For dessert, a rich, creamy chocolate mousse adds an indulgent finale that feels like a special treat while staying comforting.
Each pairing enhances the comforting vibe of your Cheesy Chicken Riced Cauliflower Casserole, creating a meal that’s perfect for family gatherings or cozy weeknights!
Make Ahead Options
These Cheesy Chicken Riced Cauliflower Casserole preparations are perfect for busy home cooks looking to save time during the week! You can assemble the entire casserole up to 24 hours in advance. Simply prepare the sauce, combine it with the chicken and riced cauliflower, transfer it to your baking dish, and cover it tightly with plastic wrap or aluminum foil to maintain freshness. When you’re ready to serve, just preheat your oven and bake for 25-30 minutes, adding a few extra minutes if baking straight from the fridge. This way, you’ll enjoy a warm, satisfying meal without the last-minute stress, all while savoring the same cheesy goodness just as delicious as when freshly made!
Cheesy Chicken Riced Cauliflower Casserole Variations
Feel free to tailor our Cheesy Chicken Riced Cauliflower Casserole to your personal taste and dietary needs!
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Turkey Swap: Replace chicken with leftover turkey or ham for a delicious and resourceful meal. This is a fantastic way to reduce food waste while still relishing a heartwarming casserole.
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Veggie Boost: Add in vegetables like broccoli, mushrooms, or bell peppers to enrich flavor and nutrition. They not only elevate the dish visually but also contribute delightful textures.
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Heat It Up: Spice things up with red pepper flakes or a drizzle of hot sauce for a fiery kick. This variation brings excitement to your dining experience and pairs beautifully with the creamy base.
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Cheesy Variations: Try different cheese blends like pepper jack or gouda for a unique twist. Throw in some parmesan for a savory richness that melts beautifully on top.
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Crunchy Topping: For an added crunch, top with crushed pork rinds or toasted breadcrumbs before baking. This adds an unexpected dimension to the casserole, making each bite even more delightful.
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Dairy-Free Delight: Use coconut milk and dairy-free cream cheese to make this recipe entirely dairy-free. It’s a great option while still providing the rich, comforting flavors you love.
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Rice-Free Option: Omit the cooked white jasmine rice for a completely low-carb dish that highlights the fluffy riced cauliflower. This enables you to savor those cheesy bites without any guilt!
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Pasta Variation: For a heartier option, mix in whole wheat or gluten-free pasta instead of rice for a chewy texture. This can help satisfy those craving a chewy, comfort-food classic.
By experimenting with these variations, you’ll not only keep your meals fresh and exciting but also cater to everyone at your table. Want some more inspiration? Pair this casserole with a refreshing Asian Chicken Cranberry Salad or enjoy it alongside Chinese Chicken Salad for a delightful balance of flavors!
Storage Tips for Cheesy Chicken Riced Cauliflower Casserole
- Room Temperature: Allow the casserole to cool to room temperature for about an hour before storing, as placing hot food in the fridge can raise the temperature inside.
- Fridge: Store leftovers in an airtight container and refrigerate for up to 3 days. Reheat gently in the microwave or oven to retain creaminess.
- Freezer: For longer storage, freeze the casserole in a freezer-safe container for up to 3 months. Thaw overnight in the fridge before reheating.
- Reheating: When ready to enjoy, reheat single portions in the microwave or bake in the oven at 350°F (175°C) until warmed through, about 20 minutes for larger portions.
Expert Tips for Cheesy Chicken Riced Cauliflower Casserole
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Rest the Chicken: Allow cooked chicken to rest for at least 10 minutes before shredding. This helps retain moisture, ensuring it stays juicy within the casserole.
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Drain Cauliflower Well: After cooking, be sure to remove excess moisture from the riced cauliflower to prevent a soggy casserole. A quick squeeze with a towel works wonders!
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Taste as You Go: Always taste your sauce before mixing it into the casserole. Adjust seasonings like salt and pepper to suit your preference, ensuring well-balanced flavors in your cheesy chicken riced cauliflower casserole.
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Broil with Care: If broiling for a crispy top, watch closely to prevent burning. Broilers can be unpredictable, so keep a watchful eye for that perfect golden crust.

Cheesy Chicken Riced Cauliflower Casserole Recipe FAQs
How do I choose ripe ingredients for this recipe?
Absolutely! When selecting your ingredients, go for fresh, vibrant vegetables. For the spinach, look for dark green leaves without wilting or yellowing. The onion should be firm and free of dark spots, and if using fresh cauliflower, opt for heads with tight florets and no brown spots. Fresh garlic should be plump and unblemished as it contributes a hearty flavor to the dish.
What are the best storage methods for leftovers?
Very! Once you’ve enjoyed your Cheesy Chicken Riced Cauliflower Casserole, allow it to cool for about an hour at room temperature. Then, transfer leftovers to an airtight container and refrigerate them for up to 3 days. When reheating, do so gently in the microwave or oven, which keeps the creaminess intact.
Can I freeze the casserole for later use?
Absolutely! To freeze your casserole, cool it completely first. Then, cover the dish tightly with aluminum foil or transfer the casserole to a freezer-safe container. It can be stored in the freezer for up to 3 months. When you’re ready to enjoy it, simply thaw it overnight in the fridge and reheat in the oven at 350°F (175°C) until warmed through.
What if my casserole turns out too watery?
The more the merrier! If you find your casserole is watery, it may be due to excess moisture from the riced cauliflower. To avoid this, after cooking the riced cauliflower, drain and press it in a clean kitchen towel to remove the liquid before mixing it with other ingredients. This step helps maintain that perfect texture.
Are there any dietary considerations for this recipe?
Indeed! This cheesy deliciousness can cater to various dietary needs. If you’re avoiding dairy, consider substituting the cream cheese with a vegan alternative, and use almond or oat milk instead of low-fat milk. For those with chicken allergies, feel free to swap in turkey or even beans for a protein boost! Always make sure to check your pantry for cross-contamination with common allergens.

Cheesy Chicken Riced Cauliflower Casserole Your New Comfort Food
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish.
- Pat your chicken breasts dry and season them with garlic powder, onion powder, paprika, Italian herbs, kosher salt, and black pepper.
- In a large skillet, warm 1 tablespoon of avocado oil over medium-high heat and sear the chicken for 4-5 minutes on each side.
- Transfer the seared chicken to the baking dish and bake for 15-20 minutes until cooked through.
- After resting for about 10 minutes, shred the chicken into bite-sized pieces.
- If using fresh cauliflower, process it until it resembles rice grains and sauté with avocado oil, salt, and pepper for 7-10 minutes.
- In a medium saucepan, melt 2 tablespoons of butter and whisk in flour to form a roux, then stir in milk and chicken broth until thickened.
- Mix in 4 tablespoons of cream cheese until melted and incorporate Dijon mustard, Italian seasoning, and adjusted salt.
- Combine the shredded chicken and riced cauliflower with the sauce, reserving about ⅓ for later.
- Spread the chicken and cauliflower mixture in the baking dish and pour the reserved cheese sauce over the top.
- Sprinkle shredded cheddar cheese over the casserole and bake for 25-30 minutes until bubbly and golden.
- Broil for an additional 2-3 minutes to achieve a crispy finish, keeping a close eye to prevent burning.
- Let the casserole rest for 10-15 minutes, garnish with fresh parsley or chives, and serve warm.

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