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Keto Chicken Alfredo Casserole Recipe

4.6 from 95 reviews

This Keto Chicken Alfredo Casserole is a creamy, cheesy, low-carb comfort dish combining tender chicken, steamed cauliflower, and a rich keto-friendly Alfredo sauce. Layered and baked to perfection with gooey mozzarella cheese, this casserole offers a satisfying meal perfect for those following a keto lifestyle or anyone craving a hearty, healthy dinner.

Ingredients

Scale

Cauliflower

  • 4 cups cauliflower florets, cut into bite-size pieces
  • 1 cup water (for steaming)

Chicken

  • 2 medium chicken breasts, cut into 1-inch cubes
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • Salt, to taste
  • Black pepper, to taste
  • 1 tbsp olive oil

Cheese & Sauce

  • 1 cup keto Alfredo sauce (store-bought low carb or homemade)
  • 6 oz shredded mozzarella cheese, divided

For Garnish

  • Chopped fresh parsley (optional)

Other

  • Non-stick cooking spray

Instructions

  1. Prepare the Cauliflower: Place the cauliflower florets and 1 cup of water in a microwave-safe bowl. Cover with a damp paper towel and microwave on high for 3 to 5 minutes until tender but not mushy. Drain off the water thoroughly then pat dry with paper towels to remove excess moisture.
  2. Cook the Chicken: Season the cubed chicken with garlic powder, onion powder, salt, and pepper. Heat olive oil in a skillet over medium-high heat. Add chicken pieces and cook for about 10 minutes, until fully cooked and no longer pink inside. Set aside.
  3. Preheat Oven and Prepare Dish: Preheat your oven to 350°F (175°C). Spray a 13×9 inch casserole dish with non-stick cooking spray. Spread 1/2 cup of Alfredo sauce evenly on the bottom of the dish.
  4. Heat the Alfredo Sauce: In a small pot over medium-low heat, warm the keto Alfredo sauce. When hot, add 3 ounces of mozzarella cheese and stir until melted and smooth.
  5. Assemble the Casserole Layers: Add half of the cauliflower to the casserole dish as the first layer. Distribute half of the cooked chicken over the cauliflower, filling in the spaces evenly. Pour 3/4 cup of the warm Alfredo sauce over the top and sprinkle with half of the remaining mozzarella cheese.
  6. Repeat Layers: Add the remaining cauliflower and chicken as another layer. Pour the remaining Alfredo sauce evenly on top, followed by the last of the mozzarella cheese.
  7. Bake the Casserole: Place the casserole in the preheated oven and bake for 30 minutes or until the casserole is heated through and the cheese is melted and bubbly.
  8. Rest and Serve: Let the casserole rest for a few minutes before slicing. Garnish with chopped parsley if desired and serve warm.

Notes

  • Drying the cauliflower after steaming is essential to avoid a watery casserole.
  • Cauliflower rice can be used in place of florets; just skip the steaming step.
  • Refrigerate leftovers in an airtight container for 4-5 days.
  • Reheat in the oven at 325°F for 10-15 minutes or microwave individual portions for 2-3 minutes.
  • Freezing is not recommended as cauliflower texture and Alfredo sauce quality degrade when frozen.

Keywords: Keto Chicken Alfredo Casserole, low carb casserole, cauliflower casserole, keto dinner, chicken Alfredo bake, cheesy casserole