This keto chicken broccoli casserole is a delicious and easy-to-make dish that is perfect for those following a low-carb diet. It's packed with shredded chicken, broccoli florets, and cheddar cheese, all brought together with a creamy sauce. This casserole is sure to become a family favorite.
If you don't usually keep heavy cream in your fridge, you'll need to pick some up at the supermarket. It's essential for creating the rich, creamy texture of this casserole. Additionally, make sure you have garlic powder and onion powder in your spice cabinet, as they add crucial flavor to the dish.

Ingredients For Keto Chicken Broccoli Casserole
Cooked chicken: Shredded and ready to mix into the casserole.
Broccoli florets: Fresh or frozen, these add a healthy crunch.
Cheddar cheese: Shredded, it melts beautifully into the casserole.
Heavy cream: Creates a rich, creamy sauce.
Garlic powder: Adds a savory depth of flavor.
Onion powder: Enhances the overall taste with a subtle onion flavor.
Salt: To taste, brings out the flavors of the other ingredients.
Pepper: To taste, adds a bit of heat and complexity.
Technique Tip for This Recipe
When preparing the broccoli florets, blanch them in boiling water for 2-3 minutes before adding them to the casserole. This will help maintain their vibrant green color and ensure they are tender by the time the casserole is done baking.
Suggested Side Dishes
Alternative Ingredients
cooked chicken - Substitute with cooked turkey: Turkey is a lean protein similar to chicken and works well in casseroles.
broccoli florets - Substitute with cauliflower florets: Cauliflower has a similar texture and is also low in carbs, making it a great keto-friendly option.
cheddar cheese - Substitute with mozzarella cheese: Mozzarella melts well and has a mild flavor that complements the dish.
heavy cream - Substitute with coconut cream: Coconut cream is a keto-friendly alternative that provides a rich, creamy texture without the dairy.
garlic powder - Substitute with fresh minced garlic: Fresh garlic offers a more robust flavor and can be used in the same quantity.
onion powder - Substitute with finely chopped onions: Fresh onions provide a stronger flavor and can be sautéed before adding to the casserole.
salt - Substitute with sea salt: Sea salt has a more complex flavor profile and can enhance the overall taste of the dish.
pepper - Substitute with white pepper: White pepper has a milder taste and can be used to maintain the dish's color and flavor balance.
Other Alternative Recipes Similar to This Casserole
How to Store or Freeze This Casserole
To store your keto chicken broccoli casserole, first allow it to cool completely at room temperature. This prevents condensation from forming inside the storage container, which can make the dish soggy.
Once cooled, transfer the casserole to an airtight container. If you prefer, you can also divide it into individual portions for easier reheating later.
Place the container in the refrigerator. The casserole will stay fresh for up to 3-4 days. When you're ready to enjoy it again, simply reheat it in the microwave or oven until warmed through.
For longer storage, freezing is an excellent option. Wrap the cooled casserole tightly with plastic wrap, then cover it with aluminum foil. This double layer helps prevent freezer burn and keeps the flavors intact.
Label the wrapped casserole with the date and contents before placing it in the freezer. It can be stored for up to 2-3 months.
When you're ready to eat the frozen casserole, transfer it to the refrigerator to thaw overnight. This gradual thawing helps maintain the texture of the broccoli florets and shredded chicken.
Once thawed, reheat the casserole in a preheated oven at 350°F (175°C) for about 20-25 minutes, or until it's heated through and bubbly. If you prefer a quicker option, you can also use the microwave, but be sure to cover it to retain moisture.
For an extra touch of freshness, consider adding a sprinkle of freshly grated cheddar cheese on top before reheating. This will give your casserole a delightful, melty finish.
If you find the casserole has dried out slightly during storage, add a splash of heavy cream or a bit of chicken broth before reheating to restore its creamy texture.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover Keto Chicken Broccoli Casserole in an oven-safe dish.
- Cover the dish with aluminum foil to prevent the cheese from drying out.
- Heat for about 20-25 minutes, or until the casserole is warmed through and the broccoli is tender.
- Remove the foil for the last 5 minutes to let the top get crispy and golden.
Microwave Method:
- Transfer a portion of the casserole to a microwave-safe dish.
- Cover the dish with a microwave-safe lid or a damp paper towel to retain moisture.
- Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat in additional 30-second intervals if needed.
Stovetop Method:
- Place a non-stick skillet over medium heat.
- Add a small amount of olive oil or butter to the skillet.
- Add the leftover Keto Chicken Broccoli Casserole to the skillet.
- Stir occasionally, heating for about 5-7 minutes until the chicken and broccoli are heated through.
- If the mixture seems dry, add a splash of heavy cream or chicken broth to keep it moist.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the leftover casserole in an air fryer-safe dish.
- Heat for about 10-12 minutes, checking halfway through to ensure it doesn't overcook.
- For a crispy top, you can sprinkle a bit more cheddar cheese on top during the last few minutes of heating.
Best Tools for This Recipe
Oven: Used to bake the casserole at a consistent temperature of 375°F (190°C).
Mixing bowl: Used to combine the shredded chicken, broccoli florets, and shredded cheddar cheese.
Separate bowl: Used to mix the heavy cream, garlic powder, onion powder, salt, and pepper.
Baking dish: Used to transfer the combined mixture for baking.
Measuring cups: Used to measure out the ingredients like heavy cream, cheddar cheese, and broccoli florets.
Measuring spoons: Used to measure the garlic powder, onion powder, salt, and pepper.
Spatula: Used to stir the cream mixture into the chicken and broccoli mixture and to spread it out evenly in the baking dish.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
How to Save Time on Making This Casserole
Pre-cook the broccoli: Steam or microwave the broccoli florets until slightly tender to reduce baking time.
Use rotisserie chicken: Save time by using pre-cooked rotisserie chicken instead of cooking and shredding your own.
Shred cheese in advance: Buy pre-shredded cheddar cheese or shred it ahead of time to speed up preparation.
Mix in one bowl: Combine all ingredients in one large mixing bowl to minimize cleanup and streamline the process.
Prepare in advance: Assemble the casserole the night before and store it in the fridge, then bake it when ready.

Keto Chicken Broccoli Casserole Recipe
Ingredients
Main Ingredients
- 2 cups Cooked Chicken, shredded
- 4 cups Broccoli Florets
- 1 cup Cheddar Cheese, shredded
- 1 cup Heavy Cream
- 1 teaspoon Garlic Powder
- 1 teaspoon Onion Powder
- to taste Salt and Pepper
Instructions
- Preheat your oven to 375°F (190°C).
- In a mixing bowl, combine the shredded chicken, broccoli florets, and shredded cheddar cheese.
- In a separate bowl, mix the heavy cream, garlic powder, onion powder, salt, and pepper.
- Pour the cream mixture over the chicken and broccoli mixture and stir until well combined.
- Transfer the mixture to a baking dish and spread it out evenly.
- Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and bubbly.
- Let it cool for a few minutes before serving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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