Creamy Keto Broccoli Chicken Casserole

Creamy Keto Broccoli Chicken Casserole is a rich, low-carb comfort dish packed with tender shredded chicken, crisp-tender broccoli, and a velvety cheese sauce. Baked until bubbly and golden, it delivers classic casserole satisfaction without the excess carbs. Perfect for weeknight dinners or meal prep, this recipe is hearty, flavorful, and keto-friendly.

Why You’ll Love This Recipe

Low-Carb & Keto Approved – Only about 6g carbohydrates per serving.
High-Protein Meal – 29g protein per portion for lasting fullness.
Creamy & Cheesy Texture – Balanced blend of cheddar and mozzarella.
Family-Friendly Comfort Food – Even non-keto eaters enjoy it.
Perfect for Meal Prep – Stores and reheats beautifully.
Simple Ingredient List – Easy to prepare with pantry staples.

Ingredients You’ll Need

2 cups cooked shredded chicken – Lean protein base; rotisserie works well.
3 cups broccoli florets – Adds fiber, texture, and color.
4 oz cream cheese (full-fat) – Creates thick, creamy sauce.
½ cup heavy cream – Adds richness and smooth consistency.
1 cup shredded cheddar cheese – Sharp flavor and golden topping.
1 cup shredded mozzarella cheese – Provides melt and stretch.
½ teaspoon garlic powder – Boosts savory depth.
½ teaspoon onion powder – Enhances flavor profile.
Salt and pepper, to taste – Balances and sharpens flavors.

Step-by-Step Instructions

Preheat and Prepare

Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish lightly.

Blanch the Broccoli

Bring a pot of water to a boil. Add broccoli florets and cook for 2 minutes until bright green and slightly tender. Drain and rinse under cold water to stop cooking.

Make the Cream Sauce

In a saucepan over medium heat, melt cream cheese with heavy cream. Stir continuously until smooth and fully combined.

Season the Sauce

Add garlic powder, onion powder, salt, and pepper. Stir until evenly incorporated.

Combine Ingredients

In a large bowl, mix shredded chicken, blanched broccoli, half of the cheddar and mozzarella cheeses, and the cream sauce until evenly coated.

Assemble and Bake

Transfer mixture to prepared baking dish. Sprinkle remaining cheddar and mozzarella over the top. Bake for 20–25 minutes until cheese is melted, bubbly, and lightly golden.

Rest and Serve

Let casserole cool for 5 minutes before serving to allow the sauce to set.

Recipe Notes & Tips

Use Full-Fat Dairy – Ensures proper texture and richness.
Slightly Undercook Broccoli – Prevents mushy texture after baking.
Drain Broccoli Well – Avoid excess moisture in casserole.
Shred Cheese Fresh – Melts smoother than pre-shredded varieties.
Broil for Golden Finish – 1–2 minutes at end if desired.
Make-Ahead Friendly – Assemble ahead and bake when ready.

Nutritional Information

Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 6
Calories: 410 kcal per serving

Per Serving (Approximate):
Carbohydrates: 6g | Fiber: 2g | Protein: 29g | Fat: 32g

Perfect Pairings

Simple Side Salad – Adds freshness and crunch.
Roasted Asparagus – Complements creamy flavors.
Cauliflower Rice – Boosts volume while staying low-carb.
Sparkling Lemon Water – Light and refreshing balance.

Ideal Occasions

Weeknight Family Dinner – Easy and satisfying.
Keto Meal Prep – Balanced macro-friendly portions.
Comfort Food Craving – Creamy without carb overload.
Low-Carb Potluck Dish – Crowd-pleasing option.

Storage & Serving Tips

Refrigerate Airtight – Keeps up to 4 days.
Reheat Gently – Oven preferred for best texture.
Freeze Up to 2 Months – Thaw overnight before baking.
Let Rest After Baking – Helps sauce thicken slightly.

Creative Variations to Try

Add Bacon Crumbles – Extra savory crunch.
Spicy Version – Mix in red pepper flakes.
Swap Chicken for Turkey – Great for leftovers.
Add Mushrooms – Enhances umami flavor.

Troubleshooting Common Issues

Watery Casserole – Drain broccoli thoroughly.
Sauce Too Thick – Add a splash of cream before baking.
Dry Texture – Avoid overbaking.
Cheese Not Browning – Broil briefly at end.

Why This Recipe Works

This casserole works because the cream cheese and heavy cream create a stable emulsion that coats the chicken and broccoli evenly. Blanching the broccoli preserves texture and color while preventing excess water release during baking. The blend of cheddar and mozzarella balances sharp flavor with smooth melt, creating a cohesive, bubbly top layer. At 410 calories per serving, this dish provides a protein-rich, low-carb meal that delivers satisfying comfort without unnecessary starch.

Final Thoughts

Creamy Keto Broccoli Chicken Casserole is the ultimate low-carb comfort food—rich, satisfying, and easy to prepare. Whether you’re following a keto lifestyle or simply looking for a wholesome dinner idea, this cheesy bake offers flavor and convenience in every bite. It’s a dependable, family-approved recipe you’ll want to keep in regular rotation.