This Chicken And Broccoli Casserole is a delectable low carb take on a casserole classic! This recipe uses rotisserie chicken so that you can spend less time cooking and more time enjoying every last bite of this dish!

What Makes This Keto Chicken Casserole So Great?
- Fast. Done start to finish in under 30 minutes.
- Easy. Simply mix the ingredients and bake.
- Low Carb. Only 8 net carbs per serving.
- Yummy. Packed with a ton of delicious ingredients that pair together perfectly.
When I think of comfort food, one of the first things that comes to mind is a delicious, hot casserole. And if you're looking for a delicious, hot casserole, this Chicken Broccoli Casserole will certainly not disappoint.
Ingredients You'll Need
It's loaded with these delicious low carb ingredients:
- 4 cups Frozen Broccoli- The hearty vegetable base of the casserole that provides fiber, nutrients, and bulk without adding many carbs.
- 3 cups Rotisserie Chicken- A convenient and flavorful source of protein that adds tenderness and richness. Using rotisserie chicken also saves time while infusing the dish with seasoned depth.
- 1/2 cup Onion- Adds sweetness, aroma, and a savory background flavor that balances the creaminess of the sauce.
- 1/2 cup Heavy Whipping Cream- Creates a rich, velvety sauce that coats the chicken and broccoli, adding moisture and a luxurious mouthfeel while keeping the dish keto-friendly.
- 1.5 cups Shredded Sharp Cheddar Cheese- The main melting cheese that binds the ingredients together. It helps create the classic creamy, cheesy texture of a comforting casserole.
- 2 teaspoons Chicken Bouillon Paste- Intensifies the savory, umami flavor of the sauce without adding extra carbs. It enhances the chicken flavor and makes the dish taste slow-simmered.
- 1 teaspoon Pepper- Adds gentle heat and a subtle sharpness that balances the richness of the cheese and cream.
- 1/2 cup Sliced Almonds- Provide a satisfying crunch on top, adding contrast to the creamy interior while keeping the recipe low carb and gluten-free.
- 1/4 cup Shredded Parmesan Cheese- Finishes the casserole with a salty, nutty flavor that crisps beautifully when baked, creating a golden, savory crust on top.
It's so good, you'll want to make this for dinner at least once a week!
One of my favorite things about this dish is how quick and easy it is to make. This recipe uses meat from a cooked rotisserie chicken, which makes the recipe super quick to make.
I like to use rotisserie chicken in place of uncooked chicken in some of my recipes in order to save myself the time and effort of cooking the chicken myself. This means less time cooking and more time eating, which is a huge win in my book.
No cream of anything soup in this Keto Broccoli Chicken Casserole. No potato chips on top, unlike in your typical chicken divan casserole.
Just good, wholesome, all-natural, and clean food.
This is a fantastic way to use up leftover rotisserie chicken as well. You could also try my Chicken Cordon Bleu Casserole for rotisserie chicken, as well as my Chicken Kale Soup.
Watch The Video
How to Make Chicken And Broccoli Casserole
1. Preheat oven to 400F.
2. In a large bowl, mix together broccoli, chicken, cream, cheddar cheese, chicken bouillon, and pepper.

3. Tip the mixture into a 9-inch baking pan or pie pan.

4. Top with sliced almonds and shredded parmesan cheese.

5. Bake at 400F for 15-20 minutes and enjoy!

Tips And Tricks To Make It Even Better
Making a Low Carb Chicken and Broccoli Casserole is all about getting that perfect balance of creamy, cheesy comfort and satisfying texture while keeping it keto-friendly. Here are some tried-and-true tips and tricks to help your casserole turn out delicious every time:
- This is a pretty straightforward mix and bake recipe so I don't have a lot of tips. But this can as easily be made in a microwave as in the oven.
- Since it uses cooked chicken and frozen broccoli, it's a great recipe to make for one person or four people at a time.
- If you want to use fresh broccoli for this, cut it into small florets, and lightly steam it for a little bit before adding to the casserole.
- You could also use cauliflower in this recipe.
Variations
A Low Carb Chicken and Broccoli Casserole is one of those dishes that welcomes creativity. Simple tweaks can completely transform its flavor profile while keeping it keto-friendly. Here are some delicious variations to suit different tastes and dietary preferences:
- Bacon Cheddar Version- Add 4–6 slices of cooked, crumbled bacon to the casserole mixture before baking. The smoky, salty flavor of bacon pairs perfectly with the creamy cheddar sauce.
- Buffalo Chicken Casserole- Mix 2–3 tablespoons of buffalo sauce into the cream and cheese mixture for a spicy kick. Top with blue cheese crumbles or drizzle with ranch dressing before serving.
- Mushroom and Spinach Casserole- Sauté 1 cup of sliced mushrooms and 1 cup of baby spinach, then mix them in with the chicken and broccoli. This adds extra veggies, flavor, and heartiness without increasing carbs.
What To Eat With Chicken And Broccoli Casserole
A Low Carb Chicken and Broccoli Casserole is rich, creamy, and filling on its own, but pairing it with the right side dishes or toppings can turn it into a well-rounded keto meal. Here are some delicious, low-carb ideas to serve alongside it:
- Cauliflower Rice- A light and fluffy base that absorbs the creamy sauce perfectly, giving you that “rice and casserole” comfort without the carbs.
- Zucchini Noodles- Tossed lightly in olive oil and garlic, zoodles make a great low-carb pasta substitute that pairs beautifully with the cheesy casserole.
- Cauliflower Breadsticks- They are perfect for soaking up the extra cheesy sauce.
How Long Does It Last?
Not only is this Keto Chicken Broccoli Casserole super easy to make, but it also serves as a great make-ahead meal!
Once it it is assembled, you can place it in the fridge in a air tight container and pop it in the oven when you're ready to eat.
Want to make this tonight and enjoy the leftovers? Broccoli and Chicken Casserole is just as tasty as the day you make it for 3-4 days when kept in your refrigerator.
Can You Freeze It?
You can freeze the casserole either whole or in individual portions. Wrap tightly in plastic wrap and then foil (or use freezer-safe containers) to prevent freezer burn. It will keep well for up to 3 months.
Thaw overnight in the fridge, then bake at 350°F for about 25–30 minutes, or until hot and bubbly. For single servings, microwave on a low power setting until warmed through.
More Great Low Carb Casseroles



- Turn a classic sandwich into an easy, low carb baked Reuben Casserole. You'll enjoy the classic flavors of Pastrami, Corned Beef, Thousand Island Dressing and Swiss cheese, but in a low carb baked Reuben instead!
- This Chicken Cordon Bleu Casserole is perfect for a weekday family dinner. It's easy to make, kid-friendly, low carb and SO very good!
- This pressure cooker Chicken Enchilada Casserole is perfect for a busy day! Put everything into the pressure cooker and then broil the cheesy topping to perfection!

Once you've made this Keto Chicken And Broccoli Casserole recipe, you'll find yourself craving its creamy, crunchy, and delectable goodness on a regular basis! Make sure to share this crave-worthy recipe with your friends on Pinterest and Facebook as well!

Equipment
Ingredients
- 4 cups Frozen Broccoli, thawed
- 3 cups Rotisserie Chicken, chopped
- 1/2 cup Onion, chopped
- 1/2 cup heavy whipping cream
- 1.5 cups shredded sharp cheddar cheese
- 2 teaspoons Chicken Bouillon Paste, (optional)
- 1 teaspoon pepper
- 1/2 cup Sliced Almonds
- 1/4 cup shredded parmesan cheese
Instructions
- Preheat oven to 400F.
- In a large bowl, mix together broccoli, chicken, onions, cream, cheddar cheese, chicken bouillon, and pepper.
- Tip the mixture into a 9-inch baking pan or pie pan. Top with sliced almonds and shredded parmesan cheese.
- Bake at 400F for 15-20 minutes.
Watch The Video
- This is a pretty straightforward mix and bake recipe so I don't have a lot of tips. But this can as easily be made in a microwave as in the oven.
- Since it uses cooked chicken and frozen broccoli, it's a great recipe to make for one person or four people at a time.
- If you want to use fresh broccoli for this, cut it into small florets, and lightly steam it for a little bit before adding to the casserole.
- You could also use cauliflower in this recipe.
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Nutrition
Don't forget to check out my other Keto cookbooks.
Keto Instant Pot, Keto Fat Bombs, Sweets, & Treats, and Easy keto in 30 minutes.














Bridget
I want to try this today but don’t have cheddar. Anyone try different cheeses? I do have an array of other choices
Kathy
Tried this today for the first time. Another KEEPER! Very easy to make. Flavor is fabulous. My husband who is not a "casserole guy" confessed he could eat the entire recipe! Thank you for creating these recipes!
URVASHI PITRE
That’s fantastic!
Irene
Delicious!! Thanks, Urvashi!
LaVonne Hoppenrath
I made this tonight! I wanted something easy without a trip to the store! It was very tasty and exactly what I wanted for a comfort food dinner on this chilly night!
#trusturvashi for sure!