Keto Chicken Alfredo Casserole Recipe
Introduction
This Keto Chicken Alfredo Casserole is a comforting, low-carb dish that combines tender chicken, creamy Alfredo sauce, and cauliflower for a deliciously satisfying meal. Perfect for those following a keto lifestyle, it’s easy to prepare and bakes to cheesy perfection.

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 the cut florets 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. Avoid overcooking.
- Step 2: Drain the cauliflower and pat dry with a paper towel. Set aside.
- Step 3: Cut the chicken breast into 1-inch cubes. Sprinkle 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, or until cooked through. Remove from heat and set aside.
- Step 5: Preheat your 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 shredded mozzarella until melted and smooth.
- Step 7: Prepare a 13×9 inch casserole dish by spraying it with non-stick spray. Spread ½ cup of the Alfredo sauce evenly on the bottom.
- Step 8: Layer half of the cauliflower over the sauce in the dish.
- Step 9: Add half of the cooked chicken, filling the spaces between the cauliflower.
- Step 10: Pour ¾ cup of Alfredo sauce evenly over the chicken and cauliflower.
- Step 11: Sprinkle 4.5 ounces of mozzarella cheese on top.
- Step 12: Repeat the layering with the remaining cauliflower and chicken, followed by the rest of the Alfredo sauce, and top with the remaining mozzarella cheese.
- Step 13: Bake in the preheated oven for 30 minutes, or until the casserole is heated through and the cheese is melted and bubbling.
Tips & Variations
- For extra flavor, add freshly chopped parsley or basil as a garnish before serving.
- Use cooked rotisserie chicken to save time instead of cooking cubed chicken breast.
- Feel free to substitute mozzarella with a mix of mozzarella and Parmesan for a sharper taste.
- If cauliflower is unavailable, steamed broccoli florets make a great alternative.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual servings in the microwave or warm the entire dish in a 350°F oven until heated through, about 15-20 minutes.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I make this casserole dairy-free?
You can substitute the mozzarella and Alfredo sauce with dairy-free cheese and sauce alternatives, though the texture and flavor will vary.
Is this recipe freezer-friendly?
Yes, you can freeze leftovers for up to 2 months. Thaw in the refrigerator overnight before reheating in the oven.
PrintKeto Chicken Alfredo Casserole Recipe
This Keto Chicken Alfredo Casserole is a creamy, low-carb comfort food perfect for those following a ketogenic lifestyle. Featuring tender steamed cauliflower layered with perfectly cooked chicken breast, rich keto-friendly Alfredo sauce, and gooey melted mozzarella cheese, it’s a delicious and satisfying dish that’s easy to prepare and bake to perfection.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 6 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Carb, Keto
Ingredients
Vegetables
- 14 ounces Cauliflower florets (cut into bite-size pieces)
Protein
- 32 ounces Chicken breast
Spices & Seasonings
- 1 teaspoon Onion powder
- 1 teaspoon Garlic powder
- ½ teaspoon Salt
- ¼ teaspoon Pepper
Oils & Sauces
- 1 tablespoon Olive oil
- 2 cups Keto Alfredo Sauce
Cheese
- 12 ounces Shredded mozzarella cheese (divided)
Instructions
- Steam the cauliflower: Place the 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 but not overcooked.
- Dry the cauliflower: Drain any excess water from the cauliflower and pat dry using a paper towel. Set aside.
- Season the chicken: Cut the chicken breast into 1-inch cubes. Sprinkle evenly with onion powder, garlic powder, salt, and pepper to season.
- Cook the chicken: Heat olive oil in a skillet over medium-high heat. Add the seasoned chicken cubes and cook for about 10 minutes, or until fully cooked through. Remove from heat and set aside.
- Preheat the oven: Set your oven to 350°F (175°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 it melts and the sauce becomes 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 of the dish.
- Add first cauliflower layer: Spread half of the steamed and dried cauliflower evenly over the sauce layer.
- Add first chicken layer: Top the cauliflower with half of the cooked chicken cubes, distributing the pieces so they fill the spaces between the cauliflower evenly.
- Layer sauce and cheese: Pour ¾ cup of the Keto Alfredo sauce over the chicken and cauliflower, then sprinkle 4.5 ounces of shredded mozzarella cheese evenly on top.
- Add second cauliflower layer: Repeat by adding the remaining cauliflower over the cheese layer.
- Add second chicken layer: Add the remaining cooked chicken on top of the cauliflower layer.
- Top with remaining sauce and cheese: Pour the remaining Alfredo sauce evenly over the chicken, and sprinkle with the last 4.5 ounces of shredded mozzarella cheese.
- Bake the 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 completely melted and bubbly.
Notes
- Make sure not to overcook the cauliflower during steaming to maintain texture.
- You can substitute the chicken breast with cooked shredded rotisserie chicken for quicker preparation.
- Use full-fat Alfredo sauce and mozzarella for best keto results.
- If you prefer, add some chopped parsley or basil for garnish after baking.
- Allow the casserole to rest for 5-10 minutes after baking for easier serving.
Keywords: Keto Chicken Alfredo Casserole, low carb casserole, keto dinner, cauliflower casserole, chicken casserole, keto alfredo sauce, baked keto dish

