If you are craving a dish that combines comfort, bold flavors, and a healthy twist, then this BBQ Chicken Cauliflower Rice Casserole Recipe is exactly what you need. It’s a delightful blend of tender chicken, smoky BBQ sauce, and light cauliflower rice, all baked to perfection with gooey cheddar cheese on top. This casserole not only satisfies your savory cravings but also sneaks in extra veggies in the tastiest way possible. Whether for a weeknight dinner or a casual get-together, this recipe brings warmth and soul to the table with every bite.

Ingredients You’ll Need
Each ingredient in this BBQ Chicken Cauliflower Rice Casserole Recipe plays a vital role in creating a harmonious balance of flavors and textures. From the tender chicken to the zesty chili powder, every element works together to craft this comforting meal that feels indulgent yet wholesome.
- 2 large boneless, skinless chicken breasts: Cooked and chopped into small pieces for a hearty protein base.
- 1 (8 oz) bag frozen cauliflower rice: Defrosted to add bulk and a nutritious, low-carb twist.
- 2 tablespoons olive oil: For sautéing the onions and garlic, adding richness without heaviness.
- ½ yellow onion: Diced for a natural sweetness that balances the smokiness of the BBQ sauce.
- 3 cloves garlic: Minced to infuse the dish with inviting depth and aroma.
- ¾ cup BBQ sauce: The star flavor that ties everything together with its tangy, smoky punch.
- 2 large eggs: Acting as a binder to hold the casserole’s ingredients firmly in place.
- ½ teaspoon salt: To enhance and elevate the natural flavors.
- ½ teaspoon black pepper: For a gentle kick of spice and warmth.
- ¼ teaspoon chili powder: Adds a subtle heat and complexity to the flavor profile.
- ¾ cup shredded cheddar cheese: Melted on top to create a golden, bubbly crust that everyone loves.
How to Make BBQ Chicken Cauliflower Rice Casserole Recipe
Step 1: Prepare Your Oven and Baking Dish
Start by preheating your oven to 400°F (200°C). Grease an 8×8 inch baking dish with nonstick spray to ensure the casserole comes out cleanly and keeps its perfect shape after baking.
Step 2: Combine Chicken and Cauliflower Rice
In a large mixing bowl, combine the chopped cooked chicken with the defrosted cauliflower rice. This mixture forms the hearty and healthy foundation of the casserole.
Step 3: Sauté Aromatics to Add Flavor
Heat the olive oil in a skillet over medium heat. Add the diced yellow onion and cook until soft and fragrant, about 3-4 minutes. Stir in the minced garlic and cook for an additional minute to release those irresistible aromas that will elevate the dish’s flavor.
Step 4: Mix and Assemble the Casserole
Add the sautéed onions and garlic to the bowl with the chicken and cauliflower rice. Stir in the BBQ sauce, eggs, salt, black pepper, and chili powder. Mix everything well until the ingredients are fully incorporated. Pour the mixture into the prepared baking dish and sprinkle the shredded cheddar cheese evenly on top. This layer of cheese will melt and brown beautifully during baking.
Step 5: Bake to Perfection
Bake the casserole for 45 minutes, or until it is set firmly and the cheese on top has turned a golden brown. This step locks in all the flavors and gives you that irresistible, bubbly, cheesy crust that makes this recipe so comforting.
Step 6: Cool Slightly Before Serving
Allow the casserole to cool for about 5 minutes after removing it from the oven. This resting time helps it firm up so you can serve nice, neat portions while everything remains warm and gooey.
How to Serve BBQ Chicken Cauliflower Rice Casserole Recipe

Garnishes
To add a fresh contrast to the rich casserole, sprinkle chopped fresh parsley or green onions right before serving. A dollop of sour cream or a drizzle of extra BBQ sauce on top can also add a creamy or tangy boost, depending on your preference.
Side Dishes
This BBQ Chicken Cauliflower Rice Casserole pairs wonderfully with simple green salads, steamed veggies, or roasted sweet potatoes. Such sides help balance the meal and introduce different textures and flavors to your dining experience.
Creative Ways to Present
Try serving individual portions baked in ramekins for a charming, personalized touch. Alternatively, layer the casserole in a large clear dish to showcase the vibrant colors, perfect for a family-style dinner or potluck.
Make Ahead and Storage
Storing Leftovers
Store any leftovers in an airtight container in the refrigerator for up to 3 days. The flavors actually deepen overnight, making the next-day meal equally satisfying.
Freezing
This casserole freezes beautifully! Place cooled portions in freezer-safe containers and freeze for up to 2 months. When you want a quick meal, just thaw overnight in the fridge and you’re ready to reheat.
Reheating
To reheat the casserole, warm it in the oven at 350°F (175°C) for 15-20 minutes until heated through. You can also microwave smaller portions for 2-3 minutes on high, stirring halfway to ensure even heating.
FAQs
Can I use fresh cauliflower instead of frozen cauliflower rice?
Absolutely! Just pulse fresh cauliflower florets in a food processor until you achieve a rice-like texture. You’ll want about 2 cups to substitute the 8-ounce frozen bag used in the recipe.
What type of BBQ sauce works best for this casserole?
Choose a BBQ sauce you love to eat on its own, whether smoky, sweet, or spicy. The sauce plays a big role in flavor, so pick one that matches your taste preferences for the best results.
Is this casserole gluten-free?
Yes, this recipe is naturally gluten-free, provided you ensure your BBQ sauce and other ingredients do not contain gluten. Always check labels if you have dietary restrictions.
Can I substitute the chicken with another protein?
Definitely. Shredded rotisserie turkey or cooked ground beef would work well, and even plant-based chicken alternatives can be substituted for a vegetarian twist.
How spicy is this casserole?
It has a mild warmth thanks to the chili powder, but it’s not overly spicy. You can adjust the amount of chili powder or add a dash of cayenne pepper if you prefer more heat.
Final Thoughts
This BBQ Chicken Cauliflower Rice Casserole Recipe has quickly become one of my go-to dishes for a busy weeknight or a comforting weekend meal. It beautifully combines ease, flavor, and nutrition all in one. I encourage you to give it a try—you may find it becomes a fast favorite in your home, just like it has in mine!
Print
BBQ Chicken Cauliflower Rice Casserole Recipe
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 65 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Fat
Description
This BBQ Chicken Cauliflower Rice Casserole is a delicious, low-carb dish combining tender chicken, flavorful BBQ sauce, and nutritious cauliflower rice, baked to golden perfection with melted cheddar cheese on top. Perfect for a comforting family meal that’s easy to prepare.
Ingredients
Chicken and Cauliflower Base
- 2 large boneless, skinless chicken breasts, cooked and chopped into small pieces
- 1 (8 oz) bag frozen cauliflower rice, defrosted
Vegetables and Flavorings
- 2 tablespoons olive oil
- ½ yellow onion, diced
- 3 cloves garlic, minced
Seasoning and Binding
- ¾ cup BBQ sauce
- 2 large eggs
- ½ teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon chili powder
Topping
- ¾ cup shredded cheddar cheese
Instructions
- Preheat and Prepare Baking Dish: Preheat your oven to 400°F (200°C) and grease an 8×8 inch baking dish with nonstick spray to prevent sticking during baking.
- Combine Chicken and Cauliflower Rice: In a large bowl, mix together the cooked, chopped chicken and the defrosted cauliflower rice until 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. Then stir in the minced garlic and cook for an additional minute to release its aroma.
- Mix All Ingredients: Add the sautéed onion and garlic to the bowl with chicken and cauliflower rice. Stir in BBQ sauce, eggs, salt, black pepper, and chili powder. Mix thoroughly to combine all flavors. Pour the mixture into the prepared baking dish and evenly spread it out. Sprinkle the shredded cheddar cheese on top.
- Bake the Casserole: Place the dish in the preheated oven and bake for 45 minutes, or until the casserole is fully set and the cheese is golden brown and bubbly.
- Cool and Serve: Remove from the oven and let the casserole cool for 5 minutes to set further before serving warm.
Notes
- Use cooked chicken breast leftover or rotisserie chicken to save time.
- Make sure to defrost the cauliflower rice completely to avoid excess moisture.
- You can substitute BBQ sauce with a low-sugar variety for a lighter option.
- For extra flavor, consider adding chopped fresh herbs like parsley or cilantro before baking.
- This casserole can be refrigerated for up to 3 days and reheated in the oven or microwave.

