Sometimes, all you want after a long day is something cozy and filling without the carb overload. This casserole hits that spot—warm, cheesy, and just enough broccoli to feel like you’re doing something good for yourself. There’s a quiet satisfaction that comes with baking something that fills the whole kitchen with a comforting aroma, the kind that makes you pause and smile while the oven does the rest.

I remember the first time I made this dish. I was halfway through the day, distracted by a dozen little tasks, when the smell of garlic and melting cheese pulled me back to the kitchen. The broccoli had that fresh snap to it, and the chicken was tender but not dry—a balance I wasn’t sure I’d get right. I may have stirred the sauce a bit too enthusiastically, causing a little splash, but hey, it all came together in the end. When it came out of the oven, bubbling and golden on top, it felt like the kind of meal that can turn any evening around.

Rich and creamy texture that still fits a low-carb lifestyle.
Combines fresh broccoli and tender chicken for a hearty meal.
It’s simple — and that’s kind of the point. No fussing over complicated steps.
Comfort food vibe without the heaviness of traditional casseroles.

Even if you’re new to keto, this casserole offers a welcoming way to enjoy familiar flavors with a healthy twist. It’s not trying to be fancy—just satisfying.

Keto Chicken and Broccoli Cheesy Casserole

Print Recipe

A creamy, cheesy keto-friendly casserole featuring tender chicken, fresh broccoli, and a rich cheese sauce, perfect for a low-carb dinner.

Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 6

Ingredients

Scale

3 cups cooked chicken breast, shredded
4 cups fresh broccoli florets
1 cup shredded sharp cheddar cheese
1 cup shredded mozzarella cheese
1 cup heavy cream
4 ounces cream cheese, softened
1/2 cup grated Parmesan cheese
2 cloves garlic, minced
1/2 teaspoon onion powder
1/2 teaspoon salt
1/4 teaspoon black pepper
2 tablespoons unsalted butter
1/4 teaspoon crushed red pepper flakes

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Instructions

Preheat the oven to 375°F (190°C).
Steam the broccoli florets until tender but still crisp, about 5 minutes. Drain and set aside.
In a medium saucepan, melt the butter over medium heat. Add the minced garlic and cook for 1 minute until fragrant.
Add the cream cheese and heavy cream to the saucepan. Stir continuously until the cream cheese is fully melted and the mixture is smooth.
Remove the saucepan from heat and stir in the shredded cheddar cheese, mozzarella cheese, Parmesan cheese, onion powder, salt, black pepper, and crushed red pepper flakes until the cheese is melted and the sauce is creamy.
In a large mixing bowl, combine the shredded cooked chicken, steamed broccoli, and cheese sauce. Mix well to evenly coat the chicken and broccoli.
Transfer the mixture to a greased 9×13-inch casserole dish and spread it out evenly.
Bake in the preheated oven for 20 to 25 minutes, until the casserole is bubbly and the top is lightly golden.
Remove from the oven and let it cool for 5 minutes before serving.

Don’t worry about needing special equipment here—just a reliable oven and a casserole dish do the trick. I usually serve it with a crisp side salad or sometimes just on its own when I’m in a hurry. If you’re feeling adventurous, you might swap out broccoli for cauliflower or add a pinch more crushed red pepper flakes for a little kick, though I haven’t tested those swaps extensively. Sometimes, I toss in a handful of cooked bacon bits for extra richness but that’s definitely optional.

FAQ

Can I prep this ahead of time? Absolutely—assemble it and refrigerate it for a few hours before baking. Just add a few extra minutes to the bake time.

What if I don’t have fresh broccoli? Frozen works too; just thaw and drain it well to avoid extra moisture.

Is there a dairy-free version? I haven’t tried it myself, but swapping cheeses for dairy-free alternatives might change the texture, so it’s a bit of an experiment.

Ready to give this comforting keto chicken and broccoli cheesy casserole a go? Your dinner table might just thank you for it.