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Keto Chicken Alfredo Casserole Recipe

4.4 from 78 reviews

This Keto Chicken Alfredo Casserole is a rich, creamy, and comforting low-carb dish featuring tender chicken, lightly blanched broccoli, and a luscious homemade Alfredo sauce baked to perfection. Perfect for those following a ketogenic diet or anyone seeking a delicious high-fat, low-carb meal.

Ingredients

Scale

Chicken

  • 1 lb boneless skinless chicken breasts, cut into bite-sized pieces

Vegetables

  • 2 cups broccoli florets, cut into bite-sized pieces

Alfredo Sauce

  • 1 cup heavy cream, room temperature
  • 1 cup freshly grated Parmesan cheese
  • 1 tsp garlic powder (or substitute with fresh minced garlic)
  • Salt and pepper, to taste

Other

  • Butter or high-heat oil, for greasing the baking dish

Instructions

  1. Preheat and prepare the dish: Preheat your oven to 375°F (190°C) and grease a 9×13-inch casserole dish with butter or high-heat oil to prevent sticking and facilitate easy cleaning.
  2. Cook chicken: Season the bite-sized chicken pieces with salt and pepper. Heat a skillet over medium-high heat, then cook the chicken until it is no longer pink in the center, about 5 to 7 minutes. Remove the cooked chicken from the skillet and set it aside while you prepare the other components.
  3. Blanch broccoli: Bring a pot of water to a boil and blanch the broccoli florets for 2 minutes. After boiling, drain the broccoli and rinse it immediately with cold water to stop the cooking process and preserve its bright green color and crunch.
  4. Make Alfredo sauce: Using the same skillet, reduce the heat to medium-low and bring the heavy cream to a gentle simmer. Gradually whisk in the freshly grated Parmesan cheese until melted and smooth. Then, add the garlic powder, salt, and pepper to taste. Continue stirring until the sauce thickens slightly, about 3 to 5 minutes.
  5. Assemble the casserole: Layer the cooked chicken and blanched broccoli evenly in the prepared casserole dish. Pour the creamy Alfredo sauce over the top, ensuring all ingredients are well coated with the sauce.
  6. Bake: Place the casserole in the preheated oven and bake for 15 to 20 minutes, or until the casserole is bubbly and the top is golden. For a more browned and textured top, optionally broil the casserole for 2 minutes at the end of baking—watch carefully to avoid burning.
  7. Rest and serve: Remove the casserole from the oven and allow it to rest for 5 minutes before serving. This helps the sauce set slightly and makes it easier to serve.

Notes

  • You can substitute garlic powder with fresh minced garlic for a more intense garlic flavor.
  • If you want to enhance texture, sprinkle an additional ¼ cup of grated Parmesan on top before baking.
  • Use fresh Parmesan cheese rather than pre-grated for best melting and flavor.
  • This casserole can be refrigerated for up to 3 days and reheated thoroughly before serving.
  • For a lower fat version, consider using half-and-half instead of heavy cream, though this will affect the richness.

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