This Low Carb Chicken Broccoli Casserole is a creamy, cheesy, and healthy dinner option that comes together quickly. Packed with broccoli, shredded chicken, and cauliflower rice, it’s perfect for low-carb and keto-friendly meals. The combination of cream cheese, cheddar, and Italian seasoning creates a comforting and flavorful casserole that’s ideal for weeknights or meal prep.

Ingredients
- 5 cups broccoli
- 2 cups shredded chicken
- 2 tablespoons butter
- ½ onion, finely diced
- 1 clove garlic, minced
- 1 teaspoon Italian seasoning
- 2 cups cauliflower rice, thawed if frozen
- 8 oz cream cheese
- ¼ cup light cream
- ¾ cup chicken broth
- 2 cups sharp cheddar cheese, divided
Instructions
- Preheat oven to 375°F.
- Add 1 cup of water to the bottom of a large skillet with a lid. Add broccoli and bring to a simmer. Cook 4-5 minutes until tender-crisp. Drain and let cool.
- Cook onion, garlic, and Italian seasoning in butter until onion is tender.
- Stir in cream cheese and cook on medium heat until smooth.
- Add light cream and chicken broth, simmer 2 minutes. Remove from heat and stir in 1 ½ cups cheddar cheese.
- Combine chicken, broccoli, cauliflower rice, and sauce. Spread into a 9 x 13-inch baking dish.
- Top with remaining cheese and bake 20-25 minutes until heated through.

Serving and Storage Tips
Serve the Low Carb Chicken Broccoli Casserole hot as a main dish. It pairs well with a fresh green salad or roasted vegetables for a complete low-carb meal. Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. Reheat in the oven or microwave until warmed through. For meal prep, divide into individual portions for quick, grab-and-go lunches.
Variations
- 1. Mediterranean Style: Add sun-dried tomatoes, Kalamata olives, and a sprinkle of feta cheese. This gives the casserole a tangy, savory Mediterranean flavor while keeping it low-carb.
- 2. Pesto Chicken Broccoli Casserole: Stir 2-3 tablespoons of basil pesto into the cheese sauce before combining with chicken and broccoli. This adds a fresh, herby flavor and extra richness.
- 3. Buffalo Chicken Broccoli Casserole: Mix ½ cup of buffalo sauce into the cheese sauce and top with crumbled blue cheese instead of cheddar for a spicy, tangy twist.
- 4. Garlic Parmesan Broccoli Casserole: Add 2-3 cloves of extra minced garlic to the sauce and top with a mixture of Parmesan and mozzarella for a deeply savory, cheesy dish.
- 5. Mushroom & Spinach Casserole: Add 1 cup of sautéed mushrooms and 1 cup of fresh spinach to the casserole. The mushrooms add an earthy flavor, and the spinach adds extra nutrition.
- 6. Herb & Lemon Casserole: Stir in 1 teaspoon of fresh thyme and 1 teaspoon of lemon zest into the cheese sauce. This brightens the flavor and pairs beautifully with chicken and broccoli.
- 7. Cheesy Cauliflower Chicken Bake: Increase the cauliflower rice to 3 cups and add an extra ½ cup of cheese for a heavier, ultra-cheesy variation that still keeps it low-carb.
- 8. Italian Sausage Chicken Casserole: Replace 1 cup of chicken with cooked, crumbled Italian sausage for a spicier, Italian-inspired twist.
- 9. Creamy Mushroom & Bacon: Add ½ cup sautéed mushrooms and 4 strips of crumbled cooked bacon to the mix. This gives the casserole a smoky, hearty flavor.
- 10. Sun-Dried Tomato & Artichoke: Fold in ½ cup chopped sun-dried tomatoes and ½ cup chopped artichoke hearts for a Mediterranean-inspired, flavorful low-carb meal.
FAQs
- Can I use frozen broccoli?
Yes, just thaw and drain it before cooking. Fresh broccoli works too if you prefer. - Is this recipe keto-friendly?
Yes, it’s low in carbs and fits perfectly into a keto or low-carb diet. - Can I use pre-cooked or rotisserie chicken?
Absolutely! Shredded pre-cooked chicken saves time and works well in this casserole. - Can I make this dairy-free?
Yes, use dairy-free cream cheese, non-dairy milk, and dairy-free shredded cheese alternatives. - Can I use regular rice instead of cauliflower rice?
Yes, but it will increase the carb count. Cauliflower rice keeps it low-carb. - Can I prep this casserole ahead of time?
Yes, assemble it and store in the fridge for up to a day before baking. - Can I freeze this casserole?
Yes, you can freeze it unbaked. Bake it from frozen or thaw in the fridge before baking. - Can I add other vegetables?
Yes, mushrooms, bell peppers, zucchini, or spinach are all great additions. - How long will leftovers keep?
Store in an airtight container in the refrigerator for up to 4 days. - Can I make it spicier?
Yes, add red pepper flakes, hot sauce, or swap some cheese for pepper jack for extra heat.
This Low Carb Chicken Broccoli Casserole is a simple, flavorful dish that is both healthy and satisfying. With minimal preparation and easy ingredients, it’s perfect for busy nights or meal prepping for the week. Enjoy a creamy, cheesy, low-carb meal the whole family will love.
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Low Carb Chicken Broccoli Casserole
Description
This Low Carb Chicken Broccoli Casserole is a creamy, cheesy, and healthy dinner option that comes together quickly. Packed with broccoli, shredded chicken, and cauliflower rice, it’s perfect for low-carb and keto-friendly meals. The combination of cream cheese, cheddar, and Italian seasoning creates a comforting and flavorful casserole that’s ideal for weeknights or meal prep.
Ingredients
- 5 cups broccoli
- 2 cups shredded chicken
- 2 tablespoons butter
- ½ onion, finely diced
- 1 clove garlic, minced
- 1 teaspoon Italian seasoning
- 2 cups cauliflower rice, thawed if frozen
- 8 oz cream cheese
- ¼ cup light cream
- ¾ cup chicken broth
- 2 cups sharp cheddar cheese, divided
Instructions
- Preheat oven to 375°F.
- Add 1 cup of water to the bottom of a large skillet with a lid. Add broccoli and bring to a simmer. Cook 4-5 minutes until tender-crisp. Drain and let cool.
- Cook onion, garlic, and Italian seasoning in butter until onion is tender.
- Stir in cream cheese and cook on medium heat until smooth.
- Add light cream and chicken broth, simmer 2 minutes. Remove from heat and stir in 1 ½ cups cheddar cheese.
- Combine chicken, broccoli, cauliflower rice, and sauce. Spread into a 9 x 13-inch baking dish.
- Top with remaining cheese and bake 20-25 minutes until heated through.
Notes
Serve the Low Carb Chicken Broccoli Casserole hot as a main dish. It pairs well with a fresh green salad or roasted vegetables for a complete low-carb meal. Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. Reheat in the oven or microwave until warmed through. For meal prep, divide into individual portions for quick, grab-and-go lunches.