Low carb chicken casserole is honestly one of those dinners I keep coming back to week after week. It's creamy, cheesy, loaded with tender chicken and broccoli florets, and it comes together in one baking dish with barely any cleanup. If you're eating low carb and craving something cozy and satisfying, this recipe is going to become your new best friend.
And yes, this one is a year-round regular in our house. I make it on busy school nights, on lazy Sunday afternoons, and even when we have guests coming over. It feels like comfort food, but it keeps us on track with our health goals. Honestly? That's the kind of win I'm always looking for.
Jump to:
- Why You'll Love This Low Carb Chicken Casserole
- Ingredients for Low Carb Chicken Casserole
- How to Make Low Carb Chicken Casserole
- My Top Tips for Low Carb Chicken Casserole
- Little Moments in the Kitchen
- Substitutions for Low Carb Chicken Casserole
- Variations on Low Carb Chicken Casserole
- Equipment for Low Carb Chicken Casserole
- Storage Tips for Low Carb Chicken Casserole
- Olivia's Tip for Low Carb Chicken Casserole
- FAQ about Low Carb Chicken Casserole
- Related
- Pairing
- 📖 Recipe
Why You'll Love This Low Carb Chicken Casserole
- It's high protein and filling. With shredded chicken, cream cheese, and cheddar, this is a high protein low carb chicken casserole that actually keeps you full for hours. No sad salad vibes here.
- It's a 30-minute weeknight hero. Use rotisserie chicken or leftover cooked chicken and this dish goes from fridge to table in about 30 minutes. Perfect for those nights when everyone is hungry and nobody has patience.
- The whole family eats it happily. No one at my table even notices this is low carb. Olivia goes back for seconds every single time, and that's the best review I could ever ask for.
Ingredients for Low Carb Chicken Casserole
Okay, let me walk you through what you'll need. I love that this recipe uses simple, real ingredients you can find at any grocery store. Nothing fancy, nothing weird. Just good food that tastes amazing together.
What You'll Need
- Cooked shredded chicken (rotisserie or leftover works perfectly)
- Fresh broccoli florets
- Cream cheese, softened
- Heavy cream
- Shredded cheddar cheese
- Grated parmesan cheese
- Garlic powder
- Onion powder
- Salt and black pepper
- Bacon crumbles (optional but honestly do it)
- Butter
Why These Ingredients Matter
- Cream cheese is the backbone of the creamy sauce here. It melts into the heavy cream to create a thick, rich base that coats every piece of chicken and broccoli without needing any flour or starch. That's what keeps this dish truly low carb and keto-friendly.
- Fresh broccoli florets add texture, color, and fiber. Frozen broccoli releases too much water during baking and can make your casserole watery and soggy. Fresh is always my pick here.
- Shredded cheddar and parmesan on top create that golden, bubbly crust that makes every bite so satisfying. The parmesan especially gives a sharp, slightly crispy finish that takes the whole dish to the next level.
If you love easy chicken dinners like this one, you should also check out my Hot Honey Chicken Bowls for another weeknight winner the whole family loves.
How to Make Low Carb Chicken Casserole
Step-by-Step Directions
- Preheat your oven to 375°F. Grease a 9x13 baking dish lightly with butter or cooking spray and set it aside.
- Blanch the broccoli florets. Bring a pot of salted water to a boil and cook the broccoli for just 2 minutes until it turns bright green. Drain immediately and pat dry. This step is important because it removes raw bitterness but keeps the broccoli from going mushy in the oven.
- Make the cream cheese sauce. In a medium saucepan over low to medium heat, melt the butter. Add the softened cream cheese and heavy cream. Stir gently and consistently until the cream cheese is fully melted and the sauce is smooth and just barely bubbling. Do not let it boil hard or the sauce can break. Season with garlic powder, onion powder, salt, and black pepper until fragrant.
- Combine the filling. In a large mixing bowl, add your shredded chicken, blanched broccoli, and bacon crumbles if using. Pour the warm cream cheese sauce over everything and stir gently until every piece is coated and glossy.
- Transfer to your baking dish. Spread the mixture evenly in the prepared 9x13 dish. Top generously with shredded cheddar and parmesan cheese.
- Bake uncovered for 20 to 25 minutes until the cheese on top is melted, golden, and bubbling around the edges. Let it rest for 5 minutes before serving so everything sets up nicely.
Pro-Tip: Make sure your cream cheese is fully softened before making the sauce. Cold cream cheese will clump and leave lumps in your sauce no matter how much you stir. I just leave mine on the counter for 30 minutes before I start cooking.
My Top Tips for Low Carb Chicken Casserole
The biggest thing I want you to remember is this: keep your heat low when making the cream cheese sauce. This sauce is sensitive and it will curdle or separate if you rush it over high heat. Go slow, stir constantly, and let it come together gently. Once you nail that sauce, making this low carb chicken casserole will feel completely effortless every single time.
Gold Tip: Always use freshly shredded cheddar instead of pre-shredded from a bag. The bagged kind is coated in starch to prevent clumping, which can actually affect how smoothly it melts. Freshly shredded cheddar melts beautifully and gives you that stretchy, gooey top layer everyone wants.
Little Moments in the Kitchen
The first time I made this low carb chicken casserole, Olivia wandered into the kitchen and watched me stirring the cream cheese sauce on the stove. She squinted at it and said, "Mom, is that just melted string cheese?" I laughed so hard I almost knocked the spoon off the counter. I explained that it was cream cheese and that it was going to turn into the creamiest, cheesiest sauce she'd ever tasted. She looked deeply skeptical.
Then the casserole came out of the oven all golden and bubbling, and I served her a big scoop. She took one bite and her whole face changed. "Okay," she said, completely serious, "you were right. This is better than string cheese." Olivia's official verdict sealed it. This recipe went straight into our weekly rotation.
Substitutions for Low Carb Chicken Casserole
- Chicken: Shredded rotisserie chicken, leftover baked chicken, or even canned chicken all work here. For a vegetarian version, swap in chickpeas or cubed firm tofu.
- Broccoli: Cauliflower florets or frozen green beans (thawed and dried well) work great as alternatives.
- Cream cheese: Dairy-free cream cheese works if you're avoiding dairy. The texture will be slightly lighter but still creamy.
- Bacon: Leave it out for a low carb chicken casserole no cheese lovers can enjoy, or swap for turkey bacon to cut the fat a bit.
- Heavy cream: Half-and-half works but gives a slightly thinner sauce. Coconut cream is a good dairy-free swap with a mild flavor.
Variations on Low Carb Chicken Casserole
- Spicy: Stir in a tablespoon of diced jalapenos or a teaspoon of red pepper flakes into the sauce before baking. This turns it into a low carb jalapeno popper chicken casserole situation and it is absolutely addictive.
- Mexican-Style: Add a teaspoon of cumin, a half teaspoon of chili powder, and a dollop of salsa to the filling. Top with pepper jack cheese instead of cheddar for an easy keto Mexican chicken casserole with great flavor and only about 6g net carbs per serving.
- Loaded Ranch: Mix a teaspoon of dried ranch seasoning into the sauce and top with extra bacon crumbles and green onions after baking. This bacon ranch chicken casserole flavor is a total crowd-pleaser and takes about 2 minutes extra to pull off.
Love bold flavors with your chicken? My Healthy Chicken Shawarma Bowl is another recipe that packs serious flavor without the carbs.
Equipment for Low Carb Chicken Casserole
- 9x13 baking dish: This is the right size for this recipe. A smaller dish will overflow and a larger one will spread the casserole too thin, drying it out.
- Medium saucepan: You need one with a heavy bottom if possible so the cream cheese sauce heats evenly without scorching.
- Large mixing bowl: For combining everything before it goes into the baking dish. A big bowl makes this step easy and mess-free.
- Box grater or stand grater: For freshly grating your cheddar. Trust me on this one.
Storage Tips for Low Carb Chicken Casserole
- Fridge: Store leftovers in an airtight container for up to 3 days. The casserole reheats well in the microwave at 50% power in 60-second intervals, or covered with foil in a 325°F oven for about 15 minutes.
- Freezing warning: I do not recommend freezing this low carb chicken casserole. Because the sauce is made with cream cheese and heavy cream, the texture will break and turn grainy when thawed. It's much better made fresh or enjoyed within 3 days from the fridge.
- Meal prep tip: You can assemble the entire casserole up to 24 hours ahead, cover it tightly with plastic wrap, and store it unbaked in the fridge. Just pop it in the oven straight from the fridge and add 5 to 10 extra minutes to the bake time.
Olivia's Tip for Low Carb Chicken Casserole
Olivia's standing rule in our kitchen is this: "Always add extra cheese on top, Mom. Like, way more than you think." She's 11 and she is absolutely correct. Don't be shy with that cheddar topping. More cheese equals better golden crust and a happier family. She's figured out the most important cooking truth there is.
FAQ about Low Carb Chicken Casserole
What can I have with chicken that has no carbs?
Great low carb sides to serve alongside this low carb chicken casserole include a simple green salad, roasted zucchini, steamed asparagus, cauliflower rice, or sauteed spinach with garlic. Any of those pair perfectly without adding carbs to your meal.
What is the best low-carb thickener for casserole?
Cream cheese is my personal favorite and that's exactly what makes this recipe work so well. Other good options include xanthan gum (use very sparingly, a tiny pinch goes a long way), pureed cauliflower, or even a small amount of full-fat sour cream stirred into the sauce.
What are the four ingredients in chicken casserole?
The classic base for most chicken casseroles is cooked chicken, a creamy sauce, a vegetable like broccoli or green beans, and a cheese topping. This low carb chicken casserole follows that exact formula but uses cream cheese and heavy cream instead of condensed soup to keep the carbs low.
Can I use cream of chicken soup to make it low carb?
Traditional canned cream of chicken soup has added starch and carbs, so it's not ideal for strict keto. If you want that familiar flavor, look for a low carb cream of chicken soup, or just stick with the homemade cream cheese sauce in this recipe. It honestly tastes even better and you control exactly what goes in it.
Looking for another cozy dinner idea? My Southern Living Tomato Pie is one of those recipes that always gets people talking at the table.
Conclusion
This easy low carb chicken casserole is the kind of recipe I truly love sharing because it checks every box. It's creamy, satisfying, simple to pull together on a weeknight, and the whole family actually gets excited when they smell it baking. When eating low carb starts to feel like a chore, a dish like this reminds you that healthy eating can still be genuinely delicious.
If you're new to low carb cooking or just looking for a reliable high protein low carb casserole to add to your rotation, start here. Make it once and I promise it will earn a permanent spot in your dinner lineup. And if you want to explore more low carb chicken inspiration, Allrecipes has a great Low-Carb Chicken Chili Casserole worth checking out too. Happy cooking from my kitchen to yours!
Related
Looking for other recipes like this? Try these:
Pairing
These are my favorite dishes to serve with low carb chicken casserole:
📖 Recipe
Easy Low Carb Chicken Casserole with Broccoli and Cream Cheese
Ingredients
Equipment
Method
- Preheat your oven to 375°F. I always let Olivia help me grease the baking dish with a little [butter], she says it's the most important job because 'no sticking allowed!'
- Bring a pot of water to a boil and quickly cook the [fresh broccoli florets] for 2 minutes until bright green. Drain and pat dry. Olivia loves watching the color change, it's like kitchen magic.
- In a saucepan, melt the [butter] over low heat. Add the softened [cream cheese] and [heavy cream], stirring slowly until smooth and creamy. Sprinkle in [garlic powder], [onion powder], [salt], and [black pepper]. I always remind Olivia, low heat and patience make the creamiest sauce.
- In a large bowl, combine [cooked shredded chicken], [broccoli florets], and [bacon crumbles]. Pour the warm sauce over everything and gently mix until coated. Olivia usually sneaks a bite here and gives me her 'approval nod.'
- Spread the mixture into your baking dish and top with [shredded cheddar cheese] and [parmesan cheese]. Olivia always insists on adding 'extra cheese for happiness.'
- Bake uncovered for 20-25 minutes until bubbly and golden on top. Let it rest for 5 minutes before serving. That's the hardest part, waiting while the kitchen smells amazing.
Nutrition
Notes
- Use rotisserie chicken to save time on busy nights.
- Always soften cream cheese before cooking to avoid lumps
- For a spicy twist, add red pepper flakes or diced jalapeños.
- Store leftovers in an airtight container in the fridge for up to 3 days.
- Do not freeze, cream-based sauces may separate after thawing.
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