Creamy Keto Broccoli Chicken Casserole

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This Creamy Keto Broccoli Chicken Casserole is the definition of comforting, low-carb goodness. Rich, cheesy, and loaded with tender chicken and nutrient-dense broccoli, this casserole is the perfect dinner option whether you’re meal prepping for the week or feeding a hungry family. It’s a one-dish wonder that doesn’t compromise on flavor or satisfaction.

With a creamy cheese sauce that hugs every bite, this casserole skips the carbs while delivering all the cozy vibes of your favorite comfort food. It’s perfect for keto followers, but even carb-lovers will ask for seconds. You won’t believe something this indulgent is totally guilt-free!

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What Kind of Chicken Works Best?

Shredded rotisserie chicken is a go-to shortcut that brings flavor and moisture to this dish. You can also use leftover baked chicken breasts or thighs. If you’re starting from scratch, season and cook your chicken with garlic and onion powder for extra depth.

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Ingredients for the Creamy Keto Broccoli Chicken Casserole

Chicken – Use pre-cooked shredded chicken for convenience and protein-packed satisfaction.

Broccoli Florets – Fresh or frozen both work; they add color, crunch, and fiber.

Cream Cheese – The base of that rich creamy sauce you’ll fall in love with.

Heavy Cream – For that luscious, velvety texture in the sauce.

Shredded Cheddar Cheese – Melts beautifully and adds sharp, tangy flavor throughout.

Garlic Powder – Gives the casserole a savory foundation.

Onion Powder – Balances the garlic with a subtle sweetness.

Salt & Pepper – To taste, bringing all the flavors together.

Optional: Paprika or Crushed Red Pepper Flakes – A pinch of spice if you like a kick.

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How To Make the Creamy Keto Broccoli Chicken Casserole

Step 1: Prep Your Ingredients

Preheat your oven to 375°F. Lightly grease a 9×13-inch casserole dish. If you’re using frozen broccoli, thaw and drain it. Chop any large florets into bite-size pieces.

Step 2: Make the Creamy Sauce

In a saucepan over medium heat, combine the cream cheese and heavy cream. Stir until smooth and fully melted. Add garlic powder, onion powder, salt, and pepper. Taste and adjust seasoning if needed.

Step 3: Combine Chicken and Broccoli

In a large mixing bowl, toss together the shredded chicken and broccoli florets. Pour the cheese sauce over the mixture and stir to coat everything evenly.

Step 4: Assemble the Casserole

Transfer the creamy chicken and broccoli mixture to your prepared casserole dish. Spread it out evenly. Sprinkle shredded cheddar cheese generously over the top.

Step 5: Bake to Golden Perfection

Bake uncovered for 20–25 minutes or until the cheese is bubbling and slightly golden on top. For an extra crispy cheese topping, broil for 2–3 minutes at the end.

Step 6: Rest and Serve

Let the casserole rest for 5–10 minutes before serving. This helps everything set and makes serving easier.

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How to Serve and Store This Creamy Casserole

Serve this casserole straight from the oven alongside a fresh green salad or roasted keto-friendly vegetables like zucchini or cauliflower. It’s hearty enough to stand alone but also plays well with sides.

To store leftovers, cover the baking dish tightly with foil or transfer portions to airtight containers. Refrigerate for up to 4 days. Reheat in the oven at 350°F or microwave individual servings until heated through.

You can also freeze this casserole! Wrap tightly and freeze for up to 2 months. Thaw overnight in the fridge before reheating.

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Frequently Asked Questions

How can I thicken the sauce without adding carbs?

If you want an even thicker sauce, try adding a small amount of xanthan gum (start with 1/4 tsp). Stir it into the cheese sauce while it’s hot to avoid clumping.

Can I make this casserole ahead of time?

Yes! Assemble the casserole the night before and store it covered in the fridge. Bake it fresh the next day.

What other cheeses can I use?

Mozzarella or Monterey Jack work great if you want a milder taste. For a smoky flavor, try smoked Gouda or a bit of parmesan.

Is this casserole gluten-free?

Absolutely. All the ingredients are naturally gluten-free, making it perfect for those avoiding both carbs and gluten.

Can I add other vegetables?

Definitely. Mushrooms, cauliflower, or spinach would be tasty additions. Just make sure to drain them well to avoid watery casserole.

What’s the best way to reheat it?

Reheat in a preheated oven at 350°F until warm, or microwave individual portions for 1-2 minutes. Add a sprinkle of cheese on top if you want to refresh the cheesy crust.

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Want More Casserole Ideas?

If you loved this creamy keto dish, check out more satisfying meals with big flavor:

• Lemon Garlic Butter Chicken Bites with Parmesan Linguine for a zesty twist.
• Bowtie Pasta with Creamy Velveeta Beef Sauce if you’re craving cheesy pasta comfort.
• Garlic Butter Chicken with Creamy Ricotta Alfredo Pasta for a dreamy white sauce dinner.
• Chicken Alfredo Lasagna Rolls for a fun spin on a classic casserole.
• Cheesy Broccoli Rice Casserole when you want more broccoli and more cheese.

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Save This Pin + Share Your Results

📌 Save this recipe to your Pinterest dinner board so you can come back to it any time.

And if you try this casserole, I’d love to hear how it turned out! Did you add mushrooms or extra spice? Swap in a different cheese?

Share your version in the comments or tag me over on Pinterest @lifewithninarecipes. I post new ideas daily—you’ll find even more low-carb meals and cheesy comfort food over there!

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