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The black skillet placed on the white marble cooktop, filled with the finished broccoli and chicken bake. The cheese topping is golden and crispy, with fresh steam rising. A serving spoon rests inside, ready to scoop

Keto Chicken Broccoli Casserole Recipe

This creamy chicken and broccoli skillet is a comforting, cheesy one-pan dish with tender chicken, vibrant broccoli, and a rich, velvety sauce, finished with a golden mozzarella topping. Perfect for busy nights!
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Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Course Main Course
Cuisine American
Servings 6
Calories 493 kcal

Equipment

  • 10-inch ovenproof skillet
  • Spatula or wooden spoon
  • Measuring cups and spoons

Ingredients
  

  • 1/4 cup 56.75 g butter, divided
  • 12 ounces 340.2 g broccoli , coarsely chopped
  • 2 cloves garlic minced
  • 1 cup 238 g heavy whipping cream
  • 1 1/2 cups 168 g shredded mozzarella, divided
  • 1/2 cup 50 g grated parmesan cheese
  • Salt and pepper
  • 3 cups 567 g cooked chopped chicken (about 1 1/4 lbs)

Instructions
 

  • Heat 2 tablespoons of butter in a 10-inch ovenproof skillet over medium heat. Add broccoli and sauté for 4 minutes until tender. Remove broccoli to a bowl.
    A black 10-inch ovenproof skillet on a white marble cooktop, with 2 tablespoons of butter melting and coarsely chopped broccoli sautéing. The broccoli is vibrant green and slightly tender, with steam rising from the skillet
  • Melt the remaining butter in the skillet. Add garlic and cook for 1 minute until fragrant.
    The same black skillet on the white marble cooktop, with the remaining butter melting and minced garlic being sautéed. The butter is sizzling, and the garlic is golden and aromatic
  • Add cream, simmer, and reduce by half (3–5 minutes). Stir in ½ cup mozzarella and all the Parmesan until melted.
  • Season with salt and pepper, then add broccoli and chicken. Stir to combine.
    The black skillet on the white marble cooktop, with sautéed broccoli and cooked chopped chicken being stirred into the creamy cheese sauce. The mixture is evenly coated and steaming
  • Top with the remaining 1 cup of mozzarella cheese.
  • Preheat broiler and place the skillet 6 inches from the heat source. Broil for 2–5 minutes until the cheese browns.
  • Serve warm and enjoy!
    The black skillet placed on the white marble cooktop, filled with the finished broccoli and chicken bake. The cheese topping is golden and crispy, with fresh steam rising. A serving spoon rests inside, ready to scoop