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 rich heavy cream sauce. Whether you're meal prepping for the week or looking for a comforting dinner, this casserole has you covered.
If you don't usually keep heavy cream in your fridge, you might need to pick some up at the supermarket. It's a key ingredient that gives the casserole its creamy texture. Also, make sure you have garlic powder and onion powder in your spice rack, as these add essential flavor to the dish.

Ingredients For Keto Chicken Broccoli Casserole
Chicken breast: Cooked and shredded, this is the main protein source for the casserole.
Broccoli florets: Fresh or frozen, these add a healthy dose of vegetables to the dish.
Heavy cream: This creates a rich, creamy sauce that binds all the ingredients together.
Cheddar cheese: Shredded and melted, it adds a deliciously cheesy flavor.
Garlic powder: Adds a subtle garlic flavor without the hassle of peeling and chopping garlic.
Onion powder: Provides a mild onion flavor that complements the other ingredients.
Salt: Enhances the overall flavor of the dish.
Pepper: Adds a touch of heat and balances the flavors.
Technique Tip for Making This Keto Casserole
When preparing the broccoli florets, blanch them in boiling water for 2-3 minutes before adding them to the mixing bowl. This will help maintain their vibrant green color and ensure they are tender in the final casserole.
Suggested Side Dishes
Alternative Ingredients
cooked chicken breast - Substitute with cooked turkey breast: Turkey breast 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.
heavy cream - Substitute with coconut cream: Coconut cream is rich and creamy, providing a dairy-free alternative that is still keto-friendly.
shredded cheddar cheese - Substitute with shredded mozzarella cheese: Mozzarella is a mild cheese that melts well and can be used in place of cheddar.
garlic powder - Substitute with fresh minced garlic: Fresh garlic provides a more intense flavor and can be used in the same quantity.
onion powder - Substitute with finely chopped onions: Fresh onions can add a more robust flavor and texture to the casserole.
salt - Substitute with sea salt: Sea salt can be used in the same quantity and offers a slightly different mineral profile.
pepper - Substitute with white pepper: White pepper has a milder flavor and can be used to maintain the dish's visual appeal without black specks.
Other Alternative Recipes Similar to This Keto Casserole
How to Store or Freeze This Keto Casserole
- Allow the Keto Chicken Broccoli Casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
- Transfer the cooled casserole into an airtight container. If you prefer, you can also portion it out into individual servings for easier reheating.
- Store the container in the refrigerator. The casserole will stay fresh for up to 4 days.
- For longer storage, consider freezing the casserole. Wrap the entire baking dish tightly with plastic wrap, followed by a layer of aluminum foil. Alternatively, you can transfer portions to freezer-safe containers or resealable freezer bags.
- Label the containers with the date to keep track of freshness.
- When ready to enjoy, thaw the frozen casserole in the refrigerator overnight.
- Reheat the casserole 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, so keep an eye on it.
- For a quicker option, you can reheat individual portions in the microwave. Place the portion on a microwave-safe plate, cover with a microwave-safe lid or another plate, and heat on medium power for 2-3 minutes, or until hot. Stir halfway through to ensure even heating.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the leftover keto chicken broccoli casserole in an oven-safe dish. Cover it with aluminum foil to prevent it from drying out. Bake for 20-25 minutes or until heated through.
For a quicker option, use the microwave. Transfer a portion of the casserole to a microwave-safe dish. Cover it with a microwave-safe lid or a damp paper towel. Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
If you prefer a crispy top, use a toaster oven. Preheat the toaster oven to 350°F (175°C). Place the casserole in an oven-safe dish and cover it with aluminum foil. Heat for 15-20 minutes, then remove the foil and bake for an additional 5 minutes to crisp up the top.
For stovetop reheating, place the casserole in a non-stick skillet over medium heat. Add a splash of heavy cream or chicken broth to keep it moist. Cover and heat for 5-7 minutes, stirring occasionally, until warmed through.
If you have an air fryer, preheat it to 350°F (175°C). Place the casserole in an air fryer-safe dish. Heat for 10-15 minutes, checking halfway through to ensure it doesn't overcook. This method will also help maintain a crispy top.
Essential Tools for Making This Keto Casserole
Oven: Used to bake the casserole at a consistent temperature of 375°F (190°C).
Mixing bowl: Utilized to combine the shredded chicken, broccoli florets, heavy cream, shredded cheddar cheese, garlic powder, onion powder, salt, and pepper.
Baking dish: The vessel in which the casserole mixture is transferred and baked.
Measuring cups: Essential for accurately measuring the heavy cream and shredded cheddar cheese.
Measuring spoons: Used to measure out the garlic powder, onion powder, salt, and pepper.
Spatula: Handy for mixing the ingredients together in the mixing bowl and for spreading the mixture evenly in the baking dish.
Knife: Necessary for cutting the cooked chicken breast into shreds and possibly for trimming the broccoli florets.
Cutting board: Provides a safe surface for shredding the chicken and preparing the broccoli florets.
Oven mitts: Important for safely handling the hot baking dish when removing it from the oven.
Cooling rack: Allows the casserole to cool slightly before serving.
How to Save Time on Making This Keto Casserole
Use rotisserie chicken: Save time by using pre-cooked rotisserie chicken instead of cooking and shredding chicken breast 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 Broccoli Casserole Recipe
Ingredients
Main Ingredients
- 2 cups Cooked Chicken Breast, shredded
- 4 cups Broccoli Florets
- 1 cup Heavy Cream
- 1 cup Shredded Cheddar Cheese
- 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 shredded chicken, broccoli florets, heavy cream, shredded cheddar cheese, 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, until the casserole is bubbly and the top is golden brown.
- Let it cool for a few minutes before serving.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Keto Casserole
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