Preheat oven to 375°F (190°C). Grease a 9x13 inch baking dish.
In a large skillet, heat olive oil over medium-high heat. Add chicken pieces and season with garlic powder, Italian seasoning, salt, and pepper. Cook until chicken is cooked through, about 5-7 minutes. Set aside.
In the same skillet, melt butter over medium heat. Add minced garlic and cook until fragrant, about 1 minute.
Stir in heavy cream and cream cheese. Cook, stirring constantly, until the cream cheese is melted and the sauce is smooth.
Remove from heat and stir in Parmesan cheese and xanthan gum (if using). Season with salt and pepper to taste.
In a mixing bowl, combine the cooked chicken, broccoli florets, and alfredo sauce. Mix well to ensure everything is evenly coated.
Pour the chicken and sauce mixture into the prepared baking dish.
Sprinkle the mozzarella cheese evenly over the top of the casserole.
Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly, and the casserole is heated through.
Let the casserole rest for a few minutes before serving. Garnish with fresh parsley, if desired.
For a smoother sauce, use an immersion blender to blend the alfredo sauce before adding the chicken and vegetables.
Feel free to add other low-carb vegetables like spinach, cauliflower, or mushrooms.
If you don't have xanthan gum, you can omit it, but the sauce may be slightly thinner.
• Main Course (American)
• Approximately 450-550 calories
• 25 minutes (Easy)
• 40 minutes
• 15-20
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