Easy, cheesy, and low-carb, this Keto Chicken Alfredo Casserole is loaded with tender chicken, melted cheese, and cauliflower, making it the perfect dinner for the whole family. Enjoy all the flavors of classic comfort food without compromising your keto lifestyle.
Ingredients
Method
- Steam the cauliflower. With 1 cup of water, place cut cauliflower in a microwave safe bowl. Cover with a damp paper towel and for approximately 3-5 minutes, microwave on high or until the cauliflower is fork tender. Don’t overcook!
- With a paper towel, drain the cauliflower pat dry. Put it aside.
- Into 1-inch cubes, cut the chicken breast and sprinkle with onion powder, garlic powder, salt, and pepper.
- Over medium high heat in a skillet add your olive oil and the cubed chicken. Until chicken is cooked through, cook for approximately TEN minute. Put it aside.
- Preheat oven to 350 degrees F.
- Over medium low heat in a small pot heat the keto alfredo sauce. When it is hot, to the sauce, add THREE ounces of mozzarella cheese and stir until it is sauce is smooth and the mozzarella cheese is melted.
- Prepare a casserole dish(13×9 inch) by spraying it with non-stick spray then spread of keto alfredo sauce(½ cup) on the bottom.
- To the dish, next add half of the cauliflower making a layer of it on the bottom.
- Top with half of the cooked chicken. Between the cauliflower, let the chicken fill in the spaces to fill the dish.
- Over the cauliflower and chicken, pour ¾ cup of keto alfredo sauce.
- Sprinkle 4.5 ounces of mozzarella on top.
- Using the remaining cauliflower and chicken, repeat steps to make a layer, followed by the remaining keto alfredo sauce. Topped with the last of the mozzarella cheese.
- Until the cheese is fully melted and the casserole is warmed through, place in oven and bake for THIRTY minutes.
Notes
NUTRITION:
- calories: 459kcal,
- carbohydrates: 6g,
- protein: 18g,
- fat: 41g,
- saturated fat: 25g,
- cholesterol: 140mg,
- sodium: 775mg,
- potassium: 246mg,
- fiber: 1g,
- sugar: 2g,
- vitamin a: 1444iu,
- vitamin c: 25mg,
- calcium: 479mg,
- iron: 1mg
Keto Chicken Alfredo Casserole

Ingredient Notes
- Cauliflower: Steam until just tender to retain texture. Avoid overcooking to prevent mushy layers.
- Chicken Breast: Cut into uniform cubes for even cooking; seasoning with garlic and onion powder enhances flavor.
- Keto Alfredo Sauce: Use a low-carb, high-fat version; heating with a bit of mozzarella makes it extra creamy.
- Mozzarella Cheese: Adds richness and helps bind the casserole. Partially mixed into the sauce and partially as topping works best.
- Olive Oil: Use for cooking chicken to keep it moist and flavorful.
- Seasonings (Salt, Pepper, Garlic, Onion Powder): Simple, classic flavors keep the dish comforting while keto-friendly.
Serving Tips
- Serve hot straight from the oven with a side of fresh greens or a light salad.
- Sprinkle fresh parsley or basil over the top for color and extra flavor.
- Pair with roasted or sautéed low-carb vegetables for a complete keto meal.
- For meal prep, divide into single-serve portions for easy grab-and-go lunches.
Storage Information
- Refrigerator: Store in an airtight container for up to 4 days. Reheat in the oven or microwave.
- Freezer: Freeze individual portions in airtight containers for up to 2 months. Thaw in the fridge overnight and reheat before serving.
- Reheating Tip: Cover with foil when reheating in the oven to prevent cheese from burning.
Frequently Asked Questions (FAQs)
Q: Can I use frozen cauliflower?
A: Yes! Thaw and drain well before steaming to avoid excess moisture in the casserole.
Q: Can I use chicken thighs instead of breasts?
A: Absolutely! Boneless, skinless thighs work well and add extra flavor and juiciness.
Q: Can I make this ahead of time?
A: Yes! Assemble the casserole and refrigerate for a few hours before baking. You may need to add a few extra minutes to bake thoroughly.
Q: Can I substitute the mozzarella cheese?
A: You can try other keto-friendly cheeses like provolone or cheddar for a different flavor, though mozzarella gives the classic creamy texture.
Q: Is this suitable for a family dinner?
A: Definitely! It serves well for 4–6 people and is kid-friendly while keeping it low-carb.