Healthy Chicken Cauliflower Rice Casserole Recipe
Introduction
This Healthy Chicken Cauliflower Rice Casserole is a comforting, nutritious meal perfect for busy weeknights. Packed with lean protein, fresh vegetables, and melty cheese, it offers a tasty way to enjoy a low-carb dinner without sacrificing flavor.

Ingredients
- 1 lb cooked chicken breast (shredded or diced)
- 4 cups cauliflower rice (fresh or frozen and thawed)
- 1 small onion, diced
- 2 cloves garlic, minced
- 1 cup broccoli florets (small pieces work best)
- 1/2 cup shredded carrots
- 1/2 cup plain Greek yogurt or sour cream
- 1/2 cup shredded mozzarella
- 1/2 cup shredded cheddar
- 1/4 cup grated Parmesan
- 1/2 tsp dried thyme
- 1/2 tsp smoked paprika
- Salt and pepper to taste
- Olive oil for sautéing
- Optional: a squeeze of lemon juice or fresh parsley for garnish
Instructions
- Step 1: Preheat your oven to 375°F (190°C). Grease a 9×13-inch casserole dish and set it aside.
- Step 2: In a large skillet, heat a drizzle of olive oil over medium heat. Add the diced onion and sauté for 3–4 minutes until soft. Stir in the garlic, broccoli, and carrots, cooking for another 5–6 minutes until the vegetables are slightly tender. Remove from heat.
- Step 3: In a large mixing bowl, combine the cauliflower rice, cooked chicken, sautéed vegetables, Greek yogurt (or sour cream), mozzarella, cheddar, Parmesan, thyme, smoked paprika, salt, and pepper. Mix well until evenly combined. If the mixture feels too dry, add a splash of milk or broth.
- Step 4: Transfer the mixture to the prepared casserole dish. Spread evenly and sprinkle extra cheese on top if desired. Bake uncovered for 25–30 minutes until the casserole is hot, bubbly, and lightly golden on top.
- Step 5: Allow the casserole to cool for a few minutes before serving. Garnish with fresh parsley or a squeeze of lemon juice for added brightness, if you like.
Tips & Variations
- Use fresh cauliflower rice for a firmer texture or frozen for convenience—just be sure to thaw and drain any excess moisture.
- Substitute shredded rotisserie chicken to save time.
- Try adding different vegetables like bell peppers or spinach for variety.
- For extra flavor, sprinkle some crushed red pepper flakes or a dash of hot sauce before baking.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, warm in the oven at 350°F (175°C) for 10–15 minutes or microwave until heated through.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use raw chicken instead of cooked chicken?
It’s best to use cooked chicken to ensure the casserole cooks evenly and the chicken stays tender. If using raw chicken, cook it thoroughly before mixing it into the casserole.
Can I make this casserole dairy-free?
Yes, substitute the cheeses with dairy-free alternatives and use a dairy-free yogurt or sour cream to keep it creamy while accommodating dietary needs.
PrintHealthy Chicken Cauliflower Rice Casserole Recipe
This Healthy Chicken Cauliflower Rice Casserole is a comforting, low-carb dish packed with nutritious veggies, tender chicken, and melty cheese. Combining sautéed onions, garlic, broccoli, and carrots with cauliflower rice and cooked chicken creates a wholesome and flavorful casserole baked to perfection. Greek yogurt adds creaminess without extra fat, making it a great choice for a healthy family meal.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Fat
Ingredients
Protein
- 1 lb cooked chicken breast (shredded or diced)
Vegetables
- 4 cups cauliflower rice (fresh or frozen and thawed)
- 1 small onion, diced
- 2 cloves garlic, minced
- 1 cup broccoli florets (small pieces work best)
- 1/2 cup shredded carrots
Dairy
- 1/2 cup plain Greek yogurt or sour cream
- 1/2 cup shredded mozzarella
- 1/2 cup shredded cheddar
- 1/4 cup grated Parmesan
Seasonings & Others
- 1/2 tsp dried thyme
- 1/2 tsp smoked paprika
- Salt and pepper to taste
- Olive oil for sautéing
- Optional: a squeeze of lemon juice or fresh parsley for garnish
Instructions
- Preheat and Prep: Preheat your oven to 375°F (190°C). Grease a 9×13-inch casserole dish and set it aside to prepare for baking.
- Sauté the Veggies: In a large skillet, heat a drizzle of olive oil over medium heat. Add the diced onion and sauté for about 3–4 minutes until soft and translucent. Stir in the minced garlic, broccoli florets, and shredded carrots, cooking for another 5–6 minutes until the vegetables are slightly tender but still vibrant. Remove the skillet from heat.
- Mix the Casserole Base: In a large mixing bowl, combine the cauliflower rice, cooked shredded chicken, sautéed veggies, plain Greek yogurt (or sour cream), shredded mozzarella, cheddar, Parmesan, dried thyme, smoked paprika, salt, and pepper. Stir thoroughly until all ingredients are evenly mixed. If the mixture feels too dry, add a splash of milk or broth to loosen it up.
- Assemble and Bake: Transfer the mixture into your greased casserole dish, spreading it out evenly. Optionally, sprinkle a little extra cheese on top for a cheesy crust. Bake uncovered in the preheated oven for 25–30 minutes, until the casserole is hot, bubbly, and lightly golden on top.
- Finish and Serve: Remove the casserole from the oven and let it cool for a few minutes to set. Garnish with fresh parsley or a squeeze of lemon juice for a bright, fresh finish if desired. Serve warm and enjoy!
Notes
- Use fresh or thawed frozen cauliflower rice for best texture.
- Greek yogurt can be substituted with sour cream or a dairy-free alternative for different dietary needs.
- Adding a splash of milk or broth helps keep the casserole moist if it seems dry before baking.
- Optional garnish like parsley or lemon juice adds freshness and enhances flavor.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
Keywords: healthy chicken casserole, cauliflower rice casserole, low carb chicken recipe, baked chicken casserole, chicken and vegetable casserole

