Prepare for mouthfuls of flavor when you make this deliciously easy casserole! This Keto Alfredo Chicken Bake is so simple to make and delights both kids and adults. Great on its own, you can also serve it over a keto-friendly pasta alternative. It reheats well, and leftovers make a filling lunch!

It is no secret that I love a good cheesy casserole, and this Keto Chicken Alfredo Bake has become a new family favorite.
I love recipes like this that I can serve the kids over pasta or rice, and hubby and I can enjoy by itself or over a low carb alternative. It makes life so easy - and I think you will agree we can all use a little easy right about now!
Is Chicken Alfredo Keto Friendly?
It can be, but many jarred alfredo sauces have additives that add additional carbohydrates that make them higher in carbs than what you could make at home. Just make sure you read the lable.
How Many Carbs Are In Alfredo Sauce?
Most commercially available brands that I have found have between 3 and 5 grams of carbohydrates per serving, versus 2 grams for my homemade recipe.
Can This Recipe Be Made Ahead?
Yes, this recipe is great made ahead. You can make it up to a day ahead of time and bake it when you are ready to serve.
Reheating
If you are using my homemade alfredo sauce, you shouldn't have an issue with the sauce separating when you reheat because I use cream cheese in the sauce, which adds flavor and helps it stabilize.
You can simply heat it in the oven, toaster oven, or microwave.
Other sauces may break - meaning the fat separates from the rest of the liquid. To reheat, add a little heavy cream and heat gently in a saucepan, stirring occasionally.
Can I Use Chicken Thighs Instead of Breasts?
Yes, you can, and this choice makes this recipe more keto-friendly since chicken thighs are higher in fat.
Make This Easier
Short on time? Use precooked chicken (like a rotisserie chicken from the grocery store), pre-chopped broccoli, and a keto-friendly jarred marinara.
Variations
Feel free to play with the vegetables here! Cauliflower, sauteed spinach, and zucchini are all excellent options.
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Want To Serve This Over Pasta? Here are Some Low Carb Alternatives!
- Vegetable Noodles are always a great alternative to pasta. Zucchini noodles, cabbage noodles, and spaghetti squash all make great options.
- Shirataki Pasta (also called miracle noodles), is a low carb option loved by many. It is made from the fiber from the konjac plant root. You can find non-GMO options. While nothing exactly mimics pasta, it is a solid alternative.
- Palmini Low Carb Pasta is another fun alternative. Made from hearts of palm, this is my go to when I need a pasta fix.
How to Make Keto Chicken Alfredo Casserole
This is a visual walk-through of the recipe. Please see the recipe carb below for measurements and cooking times.

This Low Carb Alfredo Chicken Bake couldn't be easier to make.
First, toss the broccoli and chicken together in a bowl.
In a separate bowl, stir together the Alfred sauce and xanthan gum. Don't have xanthan gum? No worries - it just makes the sauce a bit thicker, which I like, but the casserole works just fine without it.

Toss the alfredo sauce with the chicken and broccoli and transfer to a casserole dish.

Top with the cheeses and bake until heated through.

You May Also Like
- Keto Reuben Casserole has all of the flavors of a favorite sandwich in the confines of one dish. This is one the family will ask for again and again.
- When you are looking for a meal that is easy enough for a weeknight but pretty enough for company, this Keto Lemon Chicken fits the bill.
- Keto Chicken Alfredo is a simple stove-top dinner that I turn to again and again.
Keto Chicken Alfredo Bake
Ingredients
- 1 large head broccoli cut into florets and blanched
- 2 pounds boneless chicken cooked and cubed
- 1 recipe Keto Alfredo Sauce (or keto-friendly jarred sauce)
- 1 teaspoon xanthan gum
- 1/4 cup grated mozzarella cheese
- 1/4 cup grated Parmesan cheese
Instructions
- In a large bowl, combine the broccoli and cubed chicken. In a separate bowl, stir together the Alfredo sauce and xanthan gum. Toss with the broccoli and chicken.
- Transfer to a casserole dish and top with the mozzarella and Parmesan cheese.
- Bake fro 25 to 30 minutes, until bubbly and heated through.
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