Creamy, Cheesy, Low-Carb Comfort Food for the Whole Family
If you’re looking for a rich, satisfying dinner that’s low in carbs but high in flavor, this Keto Chicken Broccoli Casserole is about to become your go-to recipe. Loaded with tender chicken, perfectly cooked broccoli, and a velvety cream cheese sauce, this baked casserole delivers serious comfort without the carbs.
It’s simple, family-friendly, and perfect for meal prep. Whether you’re strictly keto or just trying to eat lower-carb meals, this creamy casserole hits all the right notes.
Why You’ll Love This Keto Casserole
- Only 4–5g net carbs per serving
- High in protein and healthy fats
- Ready in under 40 minutes
- Perfect for meal prep
- Kid-approved and freezer-friendly
- Made with simple ingredients
This dish combines convenience and nutrition in one warm, bubbly baking dish.
Ingredients (Serves 6–8)
- 3 cups cooked chicken breast, diced (rotisserie works great)
- 3 cups broccoli florets, lightly steamed
- 1½ cups shredded cheddar cheese
- ½ cup shredded mozzarella (for extra melt)
- 4 oz cream cheese, softened
- ¾ cup heavy cream
- ¼ cup chicken broth
- 2 cloves garlic, minced
- ½ tsp onion powder
- ½ tsp paprika
- Salt & black pepper to taste
- Optional: 2 tbsp butter
Ingredient Spotlight
Chicken Breast
Lean, protein-packed, and perfect for casseroles. Rotisserie chicken makes prep even faster.
Broccoli
Low in carbs and high in fiber, broccoli adds texture and nutrition while balancing the richness of the sauce.
Cream Cheese & Heavy Cream
These create the ultra-creamy base that makes this casserole indulgent yet keto-friendly.
Cheddar & Mozzarella
Cheddar adds bold flavor, while mozzarella gives that irresistible melt and stretch.
Step-by-Step Instructions
1️⃣ Prep
Preheat your oven to 375°F (190°C).
Lightly grease a 9×13 baking dish to prevent sticking.
2️⃣ Make the Cream Sauce
In a saucepan over medium heat:
- Add butter (if using) and garlic. Cook for about 30 seconds until fragrant.
- Add cream cheese, heavy cream, and chicken broth.
- Stir continuously until smooth and creamy.
- Add onion powder, paprika, salt, and black pepper.
- Stir in 1 cup of shredded cheddar until fully melted and incorporated.
The sauce should be thick, silky, and rich.
3️⃣ Assemble
Spread the cooked chicken and lightly steamed broccoli evenly in the prepared baking dish.
Pour the cream sauce evenly over the mixture, ensuring everything is coated.
Sprinkle the remaining cheddar and mozzarella evenly over the top.
4️⃣ Bake
Bake for 20–25 minutes, or until hot and bubbly.
For a golden, slightly crispy top, broil for 2–3 minutes at the end.
Let the casserole rest for 5 minutes before serving.
Approximate Macros (Per Serving – Based on 6 Servings)
- Net Carbs: 4–5g
- Protein: 32g
- Fat: 28g
- Calories: ~400
Note: Macros may vary slightly depending on ingredient brands.
Extra Flavor Boost Options
Want to elevate this dish even more?
- Add crispy bacon bits for smoky flavor
- Mix in ½ tsp Dijon mustard for tang
- Sprinkle grated Parmesan before baking
- Add red pepper flakes for gentle heat
- Stir in sautéed mushrooms for extra depth
Tips for Best Results
- Lightly steam broccoli only until bright green to avoid mushy texture.
- Use room-temperature cream cheese for smoother sauce.
- Don’t overbake — the casserole should be creamy, not dry.
- Let it rest before serving so the sauce thickens slightly.
Storage & Meal Prep
Refrigerator
Store in an airtight container for up to 4 days.
Freezer
Freeze for up to 2 months. Thaw overnight before reheating.
Reheating
Reheat in the oven at 350°F until warmed through, or microwave individual portions.
Why This Recipe Works for Keto
This casserole replaces traditional carb-heavy fillers (like rice or pasta) with broccoli while keeping richness through healthy fats. It’s satisfying, filling, and keeps you within keto macros without sacrificing comfort-food flavor.
Final Thoughts
Keto Chicken Broccoli Casserole proves that low-carb eating doesn’t have to feel restrictive. Creamy, cheesy, and packed with protein, this dish is comforting, practical, and incredibly easy to make.
It’s perfect for weeknight dinners, meal prep, or whenever you crave something warm and satisfying without the carb crash.