This keto chicken and broccoli casserole is a delicious and satisfying dish that fits perfectly into a low-carb lifestyle. It's creamy, cheesy, and packed with nutritious broccoli and chicken. Perfect for a family dinner or meal prep, this casserole is sure to become a 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 on hand, as these spices add depth of 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 that add a healthy crunch and vibrant color.
Cheddar cheese: Shredded, it melts beautifully to create a gooey, cheesy topping.
Heavy cream: Provides the creamy, rich texture that makes this casserole so indulgent.
Garlic powder: Adds a subtle, savory flavor that complements the other ingredients.
Onion powder: Enhances the overall taste with a mild onion flavor.
Salt: Essential for seasoning and bringing out the flavors of the dish.
Pepper: Adds a touch of heat and balances the flavors.
Technique Tip for Making This Casserole
When preparing this keto chicken and broccoli casserole, ensure that the broccoli florets are evenly sized. This will help them cook uniformly and maintain a pleasant texture. If the florets are too large, consider cutting them into smaller, bite-sized pieces. Additionally, for a richer flavor, lightly steam the broccoli before mixing it with the other ingredients. This step will also help to retain its vibrant green color and prevent it from becoming too watery during baking.
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 be used to maintain the low-carb nature of the dish.
cheddar cheese - Substitute with mozzarella cheese: Mozzarella melts well and provides a creamy texture, though it has a milder flavor compared to cheddar.
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 flavor and can be used in slightly smaller quantities.
onion powder - Substitute with finely chopped onions: Fresh onions provide a stronger flavor and can add a bit of texture to the casserole.
salt - Substitute with sea salt: Sea salt can be used as a direct replacement and may offer a slightly different mineral content.
pepper - Substitute with white pepper: White pepper has a milder flavor and can be used to maintain the seasoning without altering the color of the dish.
Alternative Recipes Similar to This Casserole
How to Store or Freeze This Casserole
- Allow the casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
- Transfer the cooled chicken and broccoli casserole to an airtight container. If you don't have one large enough, you can use multiple smaller containers.
- Store in the refrigerator for up to 3-4 days. Make sure the container is sealed tightly to maintain freshness.
- For longer storage, consider freezing. Wrap the casserole tightly in plastic wrap, then cover with aluminum foil to prevent freezer burn.
- Label the container with the date so you can keep track of its freshness.
- When ready to reheat, if frozen, thaw the casserole in the refrigerator overnight.
- Reheat in the oven at 350°F (175°C) for about 20-25 minutes, or until heated through. You can also use a microwave, but the oven will help retain the cheese's texture and flavor.
- If reheating from the refrigerator, it may take slightly less time, around 15-20 minutes in the oven.
- For an extra crispy top, consider adding a bit more cheddar cheese before reheating.
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 with aluminum foil to prevent it from drying out. Heat for about 20-25 minutes, or until the casserole is heated through and the cheese is bubbly again.
Microwave Method: Transfer a portion of the casserole to a microwave-safe dish. Cover 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. If needed, continue heating in 30-second increments until hot.
Stovetop Method: Place the leftover casserole in a non-stick skillet over medium-low heat. Add a splash of heavy cream or a bit of chicken broth to keep it moist. Cover and heat for about 10-15 minutes, stirring occasionally until thoroughly warmed.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the casserole in an air fryer-safe dish or line the basket with parchment paper. Heat for about 8-10 minutes, checking halfway through to ensure it doesn't overcook. This method will give the cheese a nice crispy top.
Slow Cooker Method: Transfer the leftovers to your slow cooker. Set it on low heat and cover. Allow it to warm for about 1-2 hours, stirring occasionally to ensure even heating. This method is great for maintaining the casserole's moisture and flavor.
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 shredded chicken, broccoli florets, cheddar cheese, heavy cream, garlic powder, onion powder, salt, and pepper.
Baking dish: Used to transfer the mixed ingredients and bake them evenly.
Measuring cups: Used to measure out the heavy cream, cheddar cheese, and other ingredients accurately.
Measuring spoons: Used to measure the garlic powder, onion powder, salt, and pepper.
Spatula: Used to mix the ingredients thoroughly 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 let the casserole cool for a few minutes before serving.
How to Save Time on Making This Casserole
Use rotisserie chicken: Save time by using pre-cooked rotisserie chicken instead of cooking and shredding chicken yourself.
Steam broccoli in microwave: Quickly steam broccoli florets in the microwave to cut down on cooking time.
Pre-shredded cheese: Opt for pre-shredded cheddar cheese to eliminate the need for grating.
Mix in 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
Ingredients
Main Ingredients
- 2 cups Cooked Chicken, shredded
- 3 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, cheddar cheese, heavy cream, garlic powder, onion powder, salt, and pepper.
- 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 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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