This Keto Chicken Broccoli Casserole is a creamy, cheesy, and satisfying one-pan wonder that’s perfect for busy weeknights or meal prep.

Loaded with tender chicken, vibrant broccoli, and a luscious cream sauce, it’s a low-carb twist on a classic comfort food.

With every bite, you’ll enjoy a perfect balance of savory chicken, crunchy broccoli, and melty cheese—it’s a dish that feels indulgent but fits your keto lifestyle effortlessly.

I first made this casserole on a hectic Monday evening, and it quickly became a favorite in our house. The best part? It’s a one-dish recipe that means fewer dishes to clean up afterward!

Serve it alongside some Roasted Asparagus for an added pop of flavor and nutrition, and don’t forget a tall glass of Iced Tea to round out the meal.

Whether you’re feeding the whole family or prepping your meals for the week, this casserole is a true lifesaver. It’s rich, comforting, and packed with wholesome ingredients that you’ll feel good about eating.

What’s your favorite casserole topping? Let me know in the comments—I’m always looking for new ideas!

Why I Love This Recipe (And You Will Too)

A slice of Keto Chicken Broccoli Casserole is served on a white plate, revealing layers of creamy cheese, tender chicken, and bright green broccoli. The golden, bubbly cheese topping is intact, with the plate placed on the white marble cooktop for a clean and minimal presentation

Creamy and Cheesy: The ultimate combination for comfort food lovers.
Low-Carb and Guilt-Free: All the flavor with none of the carb overload.
Easy Cleanup: A one-dish meal that saves time and effort.
Family-Friendly: Even picky eaters will fall in love with this dish.

Keto Chicken Broccoli Casserole Recipe

This Chicken and Broccoli Alfredo Bake is a bold, cheesy masterpiece that transforms simple ingredients into pure comfort. It’s rich, quick to prepare, and unapologetically indulgent!

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Prep Time 5

Cook Time 16

Total Time 21

Course Main Course

Cuisine American

Servings 6

Calories 493 kcal

Equipment

10-inch ovenproof skillet
Mixing bowl
Broiler

Ingredients

¼ cup butter divided
12 ounces broccoli coarsely chopped
2 cloves garlic minced
1 cup heavy whipping cream
1 ½ cups shredded mozzarella divided
½ cup grated parmesan cheese
Salt and pepper
3 cups cooked chopped chicken about 1 ¼ lbs

Instructions

Heat 2 tablespoons of butter in a 10-inch ovenproof skillet over medium heat. Add chopped broccoli and sauté for 4 minutes until bright green and tender. Transfer to a bowl.
Melt the remaining butter in the skillet and sauté minced garlic for 1 minute until fragrant.
Pour in the cream, bring to a simmer, and cook for 3-5 minutes until reduced by half.
Stir in ½ cup mozzarella and Parmesan until melted. Season with salt and pepper.
Add the broccoli and cooked chicken to the skillet, stirring to combine. Top with the remaining mozzarella.
Preheat the broiler and position the skillet about 6 inches from the heat source. Broil for 2-5 minutes until the cheese is bubbly and golden brown.
Serve hot and revel in the creamy, cheesy goodness!