Keto Chicken Alfredo Casserole Recipe
Introduction
This Keto Chicken Alfredo Casserole is a creamy, comforting dish perfect for low-carb meal plans. Combining tender chicken, tender cauliflower, and rich Alfredo sauce, it’s satisfying without the carbs. It’s easy to prepare and makes a great family dinner or meal prep option.

Ingredients
- 14 ounces cauliflower florets (cut into bite-size pieces)
- 32 ounces chicken breast
- 1 teaspoon onion powder
- 1 teaspoon garlic powder
- ½ teaspoon salt
- ¼ teaspoon pepper
- 1 tablespoon olive oil
- 2 cups keto Alfredo sauce
- 12 ounces shredded mozzarella cheese (divided)
Instructions
- Step 1: Steam the cauliflower by placing it in a microwave-safe bowl with 1 cup of water. Cover with a damp paper towel and microwave on high for 3 to 5 minutes until fork tender, being careful not to overcook.
- Step 2: Drain the cauliflower and pat dry with a paper towel. Set aside.
- Step 3: Cut the chicken breast into 1-inch cubes and season with onion powder, garlic powder, salt, and pepper.
- Step 4: Heat olive oil in a skillet over medium-high heat. Add the cubed chicken and cook for about 10 minutes until cooked through. Remove from heat and set aside.
- Step 5: Preheat the oven to 350°F (175°C).
- Step 6: Warm the keto Alfredo sauce in a small pot over medium-low heat. Once hot, stir in 3 ounces of mozzarella cheese until melted and smooth.
- Step 7: Prepare a 13×9 inch casserole dish by spraying with non-stick spray. Spread ½ cup of the Alfredo sauce on the bottom.
- Step 8: Layer half of the cauliflower over the sauce in the dish.
- Step 9: Add half of the cooked chicken on top of the cauliflower, filling spaces evenly.
- Step 10: Pour ¾ cup of Alfredo sauce over the chicken and cauliflower layer.
- Step 11: Sprinkle 4.5 ounces of mozzarella cheese evenly over the top.
- Step 12: Repeat the layering process with the remaining cauliflower, chicken, Alfredo sauce, and mozzarella cheese.
- Step 13: Bake in the preheated oven for 30 minutes, or until the casserole is heated through and the cheese is fully melted.
Tips & Variations
- For extra flavor, add a pinch of Italian seasoning or fresh parsley to the chicken before cooking.
- Swap cauliflower for broccoli florets for a slightly different texture and taste.
- Use a high-quality store-bought keto Alfredo sauce or make your own for a fresher taste.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, warm individual portions in the microwave or oven until heated through. This casserole also freezes well; thaw overnight in the fridge before reheating.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen cauliflower instead of fresh?
Yes, frozen cauliflower works well. Just be sure to thaw and drain it thoroughly before using to avoid excess moisture in the casserole.
Is this recipe suitable for meal prep?
Absolutely. This casserole reheats nicely and can be portioned out for several meals, making it a convenient keto-friendly option.
PrintKeto Chicken Alfredo Casserole Recipe
This Keto Chicken Alfredo Casserole is a creamy, low-carb dinner option that combines tender chicken, cauliflower florets, and a rich keto-friendly Alfredo sauce, all topped with melted mozzarella cheese and baked to perfection. It’s a comforting and satisfying meal perfect for those following a ketogenic diet or anyone looking for a delicious, healthy casserole.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Ingredients
Vegetables
- 14 ounces Cauliflower florets (cut into bite-size pieces)
Proteins
- 32 ounces Chicken breast
Seasonings
- 1 teaspoon Onion powder
- 1 teaspoon Garlic powder
- ½ teaspoon Salt
- ¼ teaspoon Pepper
Other Ingredients
- 1 tablespoon Olive oil
- 2 cups Keto Alfredo Sauce
- 12 ounces Shredded mozzarella cheese (divided)
Instructions
- Steam the Cauliflower: Place the cut cauliflower florets in a microwave-safe bowl with 1 cup of water. Cover the bowl with a damp paper towel and microwave on high for 3-5 minutes until the cauliflower is fork tender, being careful not to overcook.
- Drain and Dry Cauliflower: Drain the steamed cauliflower well and pat dry using a paper towel to remove excess moisture. Set aside.
- Prepare Chicken: Cut the chicken breast into 1-inch cubes and season evenly with onion powder, garlic powder, salt, and pepper.
- Cook Chicken: Heat olive oil in a skillet over medium-high heat. Add the cubed chicken and cook for about 10 minutes or until the chicken is cooked through. Remove from heat and set aside.
- Preheat Oven: Set your oven to 350 degrees F (175 degrees C) to prepare for baking the casserole.
- Heat Alfredo Sauce: In a small pot over medium-low heat, warm the keto Alfredo sauce. Once hot, stir in 3 ounces of shredded mozzarella cheese until melted and the sauce is smooth.
- Prepare Casserole Dish: Spray a 13×9 inch casserole dish with non-stick spray. Spread ½ cup of the warmed Alfredo sauce evenly on the bottom.
- Layer Cauliflower: Add half of the steamed cauliflower in an even layer over the sauce in the casserole dish.
- Add Chicken Layer: Evenly distribute half of the cooked chicken over the cauliflower, allowing it to fill in gaps between florets.
- Pour Sauce: Spoon ¾ cup of Alfredo sauce over the chicken and cauliflower layer.
- Add Cheese: Sprinkle 4.5 ounces of shredded mozzarella cheese evenly over the sauce.
- Repeat Layers: Repeat the layering process with the remaining cauliflower and chicken, followed by the remaining Alfredo sauce, and top with the last 4.5 ounces of mozzarella cheese.
- Bake Casserole: Place the casserole dish in the preheated oven and bake for 30 minutes or until the casserole is heated through and the cheese is fully melted and bubbly.
Notes
- Do not overcook the cauliflower during steaming to avoid mushy texture.
- Patting the cauliflower dry is crucial to prevent a watery casserole.
- Use a meat thermometer to ensure chicken is cooked to 165°F for safety.
- The keto Alfredo sauce can be store-bought or homemade for best flavor.
- This casserole can be prepared ahead of time and refrigerated before baking.
- Let the casserole rest for 5 minutes after baking to set the layers before serving.
Keywords: keto chicken casserole, low carb dinner, chicken alfredo casserole, keto dinner recipe, cauliflower casserole, creamy chicken casserole

