This keto chicken and broccoli casserole is a perfect low-carb comfort food that combines tender chicken and nutritious broccoli in a creamy, cheesy sauce. It's easy to prepare and makes for a satisfying meal that the whole family will love.
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 the casserole. Additionally, make sure you have garlic powder and onion powder in your spice cabinet, as these add essential flavor to the dish.

Ingredients For Keto Chicken And Broccoli Casserole
Chicken: Cooked and shredded, this forms the protein base of the casserole.
Broccoli: Fresh florets add a nutritious and crunchy element to the dish.
Cheddar cheese: Shredded, it melts into the casserole, providing a rich, cheesy flavor.
Heavy cream: This creates the creamy sauce that binds all the ingredients together.
Garlic powder: Adds a subtle, savory depth of flavor.
Onion powder: Enhances the overall taste with a mild onion flavor.
Salt and pepper: Essential seasonings to bring out the flavors of all the ingredients.
Technique Tip for Making This Casserole
When preparing this keto chicken and broccoli casserole, ensure that the broccoli florets are evenly sized to promote uniform cooking. Blanching the broccoli for a couple of minutes before mixing it with the other ingredients can help maintain its vibrant green color and crisp-tender texture. For an extra layer of flavor, consider sautéing the shredded chicken with a bit of olive oil and herbs before combining it with the cheddar cheese and heavy cream. This step can enhance the overall taste and make the dish even more delicious.
Suggested Side Dishes
Alternative Ingredients
cooked chicken - Substitute with cooked turkey: Turkey has a similar texture and flavor profile, making it a great alternative for chicken in casseroles.
broccoli florets - Substitute with cauliflower florets: Cauliflower has a similar texture and can absorb flavors well, making it a suitable low-carb substitute for broccoli.
cheddar cheese - Substitute with mozzarella cheese: Mozzarella melts well and has a mild flavor that complements the other ingredients in the casserole.
heavy cream - Substitute with coconut cream: Coconut cream is a dairy-free alternative that provides a rich and creamy texture, suitable for keto diets.
garlic powder - Substitute with fresh garlic: Fresh garlic offers a more robust and aromatic flavor compared to garlic powder.
onion powder - Substitute with shallots: Shallots provide a mild onion flavor and add a bit of texture to the casserole.
salt - Substitute with sea salt: Sea salt has a more complex flavor and contains trace minerals that can enhance the overall taste of the dish.
pepper - Substitute with white pepper: White pepper has a milder flavor and a slightly different heat profile, which can add a subtle complexity to the casserole.
Other Alternative Recipes Similar to This Casserole
How to Store and Freeze This Casserole
- Allow the casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
- Transfer the cooled casserole to an airtight container. If you prefer, you can also divide it into individual portions for easier reheating.
- Store the container in the refrigerator. The casserole will keep well for up to 4 days.
- For longer storage, wrap the casserole tightly in plastic wrap and then in aluminum foil to prevent freezer burn.
- Label the package with the date and contents to keep track of its freshness.
- Place the wrapped casserole in the freezer. It can be frozen for up to 3 months.
- When ready to enjoy, thaw the casserole in the refrigerator overnight.
- Reheat in a preheated oven at 350°F (175°C) for about 20-25 minutes, or until heated through. If reheating from frozen, it may take a bit longer.
- For a quicker option, you can also reheat individual portions in the microwave. Cover with a microwave-safe lid or plate to retain moisture and heat on medium power until warmed through.
- Enjoy your keto chicken and broccoli casserole just as delicious as the day you made it!
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover Keto Chicken and 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 heated through and the broccoli is tender.
- Remove the foil for the last 5 minutes to let the top get bubbly and slightly crispy.
Microwave Method:
- Transfer a portion of the casserole to a microwave-safe dish.
- Cover the dish with a microwave-safe lid or plastic wrap, leaving a small vent for steam to escape.
- Microwave on medium power for 2-3 minutes.
- Stir the casserole halfway through to ensure even heating.
- Continue microwaving in 1-minute intervals until the chicken and broccoli are heated through.
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 and Broccoli Casserole to the skillet.
- Stir occasionally to prevent sticking and ensure even heating.
- Cook for about 5-7 minutes, or until the casserole is thoroughly heated.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the leftover casserole in an air fryer-safe dish or on a piece of aluminum foil.
- Heat for about 5-7 minutes, checking halfway through to ensure it doesn’t overcook.
- The air fryer will give the cheese a nice crispy texture on top.
Essential Tools for Making This Casserole
Oven: Used to bake the casserole at a consistent temperature of 375°F (190°C).
Mixing bowl: Used to combine the cooked chicken, broccoli, cheddar cheese, heavy cream, garlic powder, onion powder, salt, and pepper.
Baking dish: Used to transfer the mixture into and spread it evenly for baking.
Measuring cups: Used to measure out the heavy cream, cheddar cheese, and other ingredients accurately.
Measuring spoons: Used to measure out the garlic powder, onion powder, salt, and pepper.
Shredder: Used to shred the cooked chicken and cheddar cheese if not pre-shredded.
Spatula: Used to mix the ingredients in the mixing bowl and to spread the mixture evenly in the baking dish.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
Cooling rack: Used to place the baking dish on after removing it from the oven to let it cool for a few minutes before serving.
How to Save Time on Making This Casserole
Pre-cook the broccoli: Steam or microwave the broccoli florets ahead of time 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: Shred the cheddar cheese beforehand and store it in the fridge until needed.
Mix in the baking dish: Combine all ingredients directly in the baking dish to save on cleanup time.
Batch cooking: Double the recipe and freeze half for a quick meal later.

Keto Chicken and 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 oven to 375°F (190°C).
- In a mixing bowl, combine cooked chicken, broccoli, cheddar cheese, heavy cream, garlic powder, onion powder, salt, and pepper.
- Transfer the mixture to a baking dish and spread evenly.
- Bake for 25-30 minutes, until the top is golden and bubbly.
- Let it cool for a few minutes before serving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Casserole
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