If you think casseroles are just comfort food classics, wait until you try this BBQ Chicken Cauliflower Rice Casserole Recipe—it’s a total game-changer. This dish combines tender chunks of chicken, smoky barbecue sauce, and the unique texture of cauliflower rice into one hearty, nutritious, and flavor-packed casserole that you’ll want to make again and again. It’s perfect for busy weeknights or meal prepping, offering all the cozy satisfaction of a traditional casserole but with a fresh, lighter twist that keeps things exciting on your plate.

Ingredients You’ll Need
What’s truly wonderful about the BBQ Chicken Cauliflower Rice Casserole Recipe is how simple and accessible the ingredients are, yet how they come together to create such bold flavor and pleasing textures. Each item plays an important role—from the sautéed onions adding sweetness and depth, to the gooey cheddar cheese crowning this casserole with golden beauty.
- Boneless, skinless chicken breasts: The star protein, cooked and chopped for perfect bite-sized pieces.
- Frozen cauliflower rice: An excellent low-carb substitute giving the casserole a light yet filling base.
- Olive oil: For sautéing onions and garlic to build a fragrant flavor foundation.
- Yellow onion: Adds a touch of sweetness and softness after being sautéed.
- Garlic cloves: Minced to infuse the dish with a warm, aromatic kick.
- BBQ sauce: The smoky, tangy heart of the casserole that ties everything together beautifully.
- Eggs: Help bind the ingredients and give the casserole structure.
- Salt and black pepper: Essential for seasoning and enhancing all the flavors.
- Chili powder: Adds a subtle heat and complexity to deepen the BBQ notes.
- Shredded cheddar cheese: Creates a melty, golden crust that’s irresistible.
How to Make BBQ Chicken Cauliflower Rice Casserole Recipe
Step 1: Get Your Oven and Pan Ready
Start by preheating your oven to 400°F (200°C). While it warms up, grease an 8×8 inch baking dish with nonstick spray. This preparation ensures your casserole will come out cleanly and have that perfect crust around the edges.
Step 2: Combine Your Main Ingredients
Grab a large mixing bowl and toss together your cooked, chopped chicken and defrosted cauliflower rice. This duo forms the hearty base of your casserole, combining protein and fiber in every bite.
Step 3: Sauté the Aromatics
Heat olive oil in a skillet over medium heat and add the diced onion. Cook until it’s softened and almost translucent—this step sweetens the onion and builds flavor. Then add the minced garlic and cook for just one more minute to bring out its fragrant oils without burning.
Step 4: Mix Everything Together
Pour the sautéed onion and garlic into the bowl with your chicken and cauliflower rice. Now stir in the BBQ sauce, eggs, salt, black pepper, and chili powder. Mix everything thoroughly so those smoky, spicy flavors spread evenly through the casserole. Transfer the mixture to your prepared dish and sprinkle shredded cheddar cheese on top to form that golden, cheesy blanket.
Step 5: Bake to Perfection
Slide the dish into the oven and bake for 45 minutes. You’re looking for a set casserole with a beautifully browned cheesy surface. Once done, take it out and let it rest for about 5 minutes to hold its shape before slicing and serving.
How to Serve BBQ Chicken Cauliflower Rice Casserole Recipe

Garnishes
Sprinkle freshly chopped green onions or cilantro for a pop of color and refreshing bite. A dollop of sour cream can add a cool creaminess that balances the spice and tang of the BBQ sauce perfectly. These little extras can elevate your casserole from delicious to downright memorable.
Side Dishes
This casserole pairs beautifully with simple side salads—think a crisp Caesar or a zesty coleslaw—to add brightness and crunch. Roasted veggies or steamed green beans are also excellent companions, providing extra texture and nutrition without competing with the casserole’s bold flavors.
Creative Ways to Present
Serve individual portions in colorful ramekins for a pretty presentation that’s perfect for entertaining. You can also layer the casserole over leafy greens as a warm, hearty topping or scoop it into lettuce cups for a fun, low-carb twist. The BBQ Chicken Cauliflower Rice Casserole Recipe is versatile enough to shine in many forms!
Make Ahead and Storage
Storing Leftovers
After enjoying your casserole, let leftovers cool completely before transferring to an airtight container. Stored in the fridge, it stays fresh for up to 3 days, maintaining that wonderful BBQ flavor without drying out.
Freezing
This casserole freezes beautifully. Portion it into freezer-safe containers and freeze for up to 2 months. When you want a quick meal, just thaw overnight in the fridge and warm it up for a comforting dinner on a busy night.
Reheating
To reheat, pop your portion in the oven at 350°F (175°C) for about 15-20 minutes until warmed through and the cheese is melty again. Alternatively, microwave on medium power in 1-minute increments to keep it moist and delicious without overcooking.
FAQs
Can I use fresh cauliflower rice instead of frozen?
Absolutely! Fresh cauliflower rice works just as well and will give the casserole a slightly crunchier texture, which some people really love. Just be sure to finely grate or pulse the cauliflower until it’s rice-sized.
What type of BBQ sauce is best for this recipe?
Choose your favorite BBQ sauce, whether it’s sweet, smoky, or tangy. A thick sauce works nicely to coat the chicken and cauliflower evenly, but feel free to adjust according to your taste preferences.
Is this recipe low-carb or keto-friendly?
Yes, the BBQ Chicken Cauliflower Rice Casserole Recipe is an excellent low-carb option because it uses cauliflower rice instead of traditional grains. Just check your BBQ sauce for added sugars if you’re strictly following keto guidelines.
Can I make this casserole vegetarian?
You can easily swap the chicken for cooked beans, tofu, or a plant-based chicken substitute to make it vegetarian. Keep the other ingredients the same for a delicious twist on this recipe.
How spicy is the casserole?
The chili powder adds a gentle warmth but isn’t overpowering. If you like more heat, feel free to add a pinch of cayenne pepper or some diced jalapeños to the mix.
Final Thoughts
There is nothing quite like the cozy satisfaction wrapped up in the BBQ Chicken Cauliflower Rice Casserole Recipe. It strikes that perfect balance between comfort food and health-conscious eating, all while being incredibly easy to prepare. Whether you make it for a family dinner or meal prep for the week, this casserole will quickly become a beloved favorite. Give it a try—you might just find your new go-to recipe!
Print
BBQ Chicken Cauliflower Rice Casserole Recipe
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 5 minutes
- Yield: 4 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Description
A delicious and hearty BBQ Chicken Cauliflower Rice Casserole that combines tender chicken, flavorful BBQ sauce, and nutritious cauliflower rice. This baked casserole offers a low-carb twist on classic comfort food, perfect for a satisfying family dinner.
Ingredients
Protein and Vegetables
- 2 large boneless, skinless chicken breasts, cooked and chopped into small pieces
- 1 (8 oz) bag frozen cauliflower rice, defrosted
- ½ yellow onion, diced
- 3 cloves garlic, minced
Other Ingredients
- 2 tablespoons olive oil
- ¾ cup BBQ sauce
- 2 large eggs
- ½ teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon chili powder
- ¾ cup shredded cheddar cheese
Instructions
- Preheat and Prepare Dish: Preheat the oven to 400°F (200°C) and grease an 8×8 inch baking dish with nonstick spray to prevent sticking.
- Combine Chicken and Cauliflower Rice: In a large bowl, mix the cooked and chopped chicken breast with the defrosted cauliflower rice, ensuring they are evenly combined.
- Sauté Onion and Garlic: Heat olive oil in a skillet over medium heat. Add the diced onion and cook until softened, about 3-5 minutes. Stir in minced garlic and cook for an additional minute until fragrant.
- Mix Ingredients and Bake: Add the sautéed onion and garlic mixture to the bowl with chicken and cauliflower rice. Stir in BBQ sauce, eggs, salt, black pepper, and chili powder until well combined. Pour the mixture into the prepared baking dish and evenly sprinkle shredded cheddar cheese on top. Bake for 45 minutes, or until the casserole is set and the cheese is golden brown.
- Cool and Serve: Remove the casserole from the oven and let it cool for 5 minutes before serving to allow it to set properly for easier slicing and serving.
Notes
- Use cooked chicken to save time; leftover rotisserie chicken works great.
- Make sure to defrost cauliflower rice completely to avoid excess moisture in the casserole.
- For a spicier kick, increase the chili powder or add a pinch of cayenne pepper.
- This dish can be stored in an airtight container in the refrigerator for up to 3 days.
- Reheat leftovers in the oven or microwave before serving.

