Easy Low Carb Chicken Casserole (Creamy, Cheesy & Family-Approved!)

This easy low carb chicken casserole is creamy, cheesy, and loaded with wholesome veggies. A perfect weeknight keto-friendly dinner the whole family will love!

Why We Love This Easy Low Carb Chicken Casserole

Let me tell you—this easy low carb chicken casserole has become a weeknight lifesaver in our house. You know those days when everyone is hungry, the homework pile is growing, and you still haven’t figured out dinner? That’s when I pull this recipe out. It’s warm, comforting, and cheesy in all the right ways… without making you feel like you overdid it.

I first made it on one of those hectic Tuesdays last fall. Noah had basketball practice, Emma was working on a paper mâché volcano, and I could hear the dishwasher beeping at me. I threw this together with leftover chicken, some broccoli I found in the freezer, and a handful of cheese. Thirty minutes later, we were sitting down together, laughing and eating like the chaos had never happened.

“Creamy, cheesy, and filled with tender chicken and veggies—this low carb casserole is cozy comfort in a single dish.”

What I love most is how this feels like real low carb comfort food. No strange ingredients. No complicated prep. Just wholesome things that come together into something truly satisfying. I’ll often stretch it with cauliflower rice when we’ve got extra mouths at the table—my little secret for adding bulk without adding carbs.

If your family enjoys cozy meals like this, you might also love my roasted garlic chicken and vegetables—another weeknight win in our home.

Ingredients You’ll Need

This keto chicken casserole is built around simple, fridge-friendly ingredients—nothing fancy, nothing fussy. I love that I can whip it up with things I usually have on hand, especially when I’m trying to avoid another grocery run.

And yes, you can absolutely use rotisserie chicken in this! In fact, I do that all the time. It saves me at least 15 minutes on chopping and cooking, especially during busy weeks. I just pull the meat off the bone and give it a rough chop or shred with a fork.

We also toss in broccoli (Emma’s favorite veggie when it’s covered in cheese!) and cauliflower rice for a bit of stretch. Trust me, it’s a great way to bulk up the dish without making it feel heavy.

Here’s what you’ll need:

• 3 cups cooked chicken, shredded or diced
 Eva’s Note: Rotisserie chicken is perfect—especially when you’re short on time.

• 2 cups broccoli florets, steamed
 Eva’s Note: Use steamed, not raw! Raw broccoli won’t soften enough in the oven—I learned that the hard way one Tuesday night.

• 1 cup cauliflower rice (optional)
 Eva’s Note: I love adding this to stretch the casserole. Great for feeding a few extra guests or growing teens.

• 1½ cups shredded cheddar cheese
 Tip: Sharp cheddar adds bold flavor without needing too much.

• 1 cup shredded mozzarella cheese
 Eva’s Note: Melts beautifully for that perfect cheese pull.

• 1 cup heavy cream

• ½ cup sour cream

• 4 oz cream cheese, softened
 Eva’s Note: Let it fully soften first! If it’s still firm, you’ll end up whisking lumps forever—and who has time for that on a weeknight?

• 1 tsp garlic powder

• 1 tsp onion powder

• ½ tsp smoked paprika

• Salt and black pepper, to taste

• ½ cup grated Parmesan cheese (optional, for topping)
 Eva’s Note: Adds a golden, savory crunch on top—totally worth it.

One more tip—if you’ve got the energy, shred your own cheese. The pre-shredded bags often have added starches to prevent clumping, which can mess with the creaminess. When you grate it fresh, it melts like a dream.

Step-by-Step: How to Make This Chicken Casserole

One of the things I love most about this cheesy chicken bake is how simple the steps are—especially for how much flavor and comfort you get out of it. It’s the kind of meal I can prep while answering school forms, refereeing sibling squabbles, and sipping lukewarm coffee all at once.

Here’s how to make this creamy, low carb chicken casserole from start to bubbly finish:

1. Preheat and Prep

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish.

2. Mix the Creamy Base

In a large bowl, whisk together:
• 1 cup heavy cream
• ½ cup sour cream
• 4 oz softened cream cheese
• 1 tsp garlic powder
• 1 tsp onion powder
• ½ tsp smoked paprika
• Salt and pepper to taste

Eva’s Note: Make sure that cream cheese is fully softened before you whisk—otherwise you’ll end up chasing lumps, and nobody has time for that.

3. Fold in the Good Stuff

Add to the bowl:
• 3 cups cooked chicken
• 2 cups steamed broccoli florets
• 1 cup cauliflower rice (optional)
• 1½ cups shredded cheddar cheese
• 1 cup shredded mozzarella cheese

Gently stir until everything is coated in that creamy mixture. Don’t worry if it looks a little thick—it’ll melt beautifully in the oven.

4. Transfer to Baking Dish

Spoon the mixture into your greased casserole dish and spread it out evenly.

5. Top It Off

If you’re using it, sprinkle ½ cup grated Parmesan cheese on top for extra flavor and a golden finish.

6. Bake

Place the casserole in the oven and bake for 25–30 minutes, or until the edges are bubbly and the top is golden.

Eva’s Tip: When the edges are bubbly and the top is golden, that’s your cue—it’s casserole perfection.

While it bakes, I usually take that time to do a quick kitchen reset or set the table with the help of whoever isn’t hiding from chores. Sometimes I’ll throw together a quick side like my garlic butter green beans or prep a little salad if I’m feeling ambitious.

If you love veggie-packed casseroles, you might also enjoy my creamy lemon chicken pasta or this vegetable casserole—they’ve both been on regular rotation in our kitchen lately.

Why It’s Perfect for Low Carb and Keto Lifestyles

Finding low carb comfort food that actually feels comforting can be a bit of a dance, right? I’ve been down that road—trying recipes that promise “creamy” or “hearty” and then taste… flat. That’s why I love this easy low carb chicken casserole so much. It brings all the cozy casserole vibes without tipping your carb count off the rails.

When I started paying closer attention to what I was feeding my family—trying to reduce refined carbs and focus on whole ingredients—this dish was a game-changer. It’s full of protein, loaded with fiber from the broccoli and cauliflower rice, and wrapped up in a rich, cheesy, creamy sauce that tastes like it came from your favorite diner.

It also reheats like a dream, which is a huge bonus for busy weeks. I’ll often portion it into containers and tuck it into the fridge for lunches. My husband says it’s even better the next day (though he says that about lasagna too, so take it with a grain of salt).

Eva’s Low Carb Tip Box

Here’s the rough nutrition breakdown per serving (makes about 6 servings):
• Net carbs: ~6–8g (depending on your cauliflower rice and dairy brands)
• Protein: ~30g
• Fat: ~25g

Want to make it even lower in carbs?
• Skip the cauliflower rice entirely
• Use full-fat dairy (less added sugars and fillers)
• Choose your cheese carefully—some pre-shredded blends sneak in starches

And if you’re looking for more keto-friendly comfort foods, I highly recommend my keto cheeseburger soup—it’s another winter favorite around here.

Make-Ahead, Freezing & Storage Tips

This easy low carb chicken casserole is just as practical as it is comforting—and honestly, that’s what makes it a favorite in our house. It’s a true meal prep chicken casserole that works with your week instead of against it.

Whether you’re making it ahead for busy weeknights or stashing a backup in the freezer for “just in case,” this dish is built to flex with your schedule.

Fridge Storage

• Make ahead: Assemble the full casserole, cover tightly, and refrigerate up to 2 days before baking.
• Leftovers: Store baked leftovers in an airtight container in the fridge for 3–4 days. Reheat in the oven or microwave until warmed through.

Eva’s Note: I often portion leftovers into small glass containers so my husband can grab them for lunch. Add a sprinkle of fresh cheese on top before reheating—it freshens it up nicely.

Freezer Tips

• To freeze unbaked: Assemble the casserole in a foil or freezer-safe baking dish, wrap tightly in plastic wrap and foil, and freeze for up to 3 months.
• To freeze baked: Let it cool completely, portion into airtight containers, and freeze individual servings.
• To reheat: Thaw overnight in the fridge, then bake at 375°F until bubbly and hot in the center (about 30–35 minutes).

Eva’s Note: I like to keep one in the freezer for surprise guests or those nights when we all get home late and nobody wants to cook—not even me.

Serving Suggestions & Pairings

This healthy chicken casserole is hearty enough to stand on its own—but if your family’s anything like mine, they’re always asking, “What else are we having with it?” That’s where some easy sides come in handy.

When I serve this low carb chicken casserole, I try to keep the sides simple and fresh to balance all that cheesy goodness. Whether you’re going keto, low-carb-ish, or just looking for something green on the plate, these are my go-to pairings.

What to Serve with Easy Low Carb Chicken Casserole

• Eva’s Favorite: Garlic butter green beans – just sautéed with a bit of lemon zest
• Simple side salad with mixed greens, cherry tomatoes, and a creamy vinaigrette
• Roasted zucchini or asparagus tossed with olive oil and sea salt
• Cucumber and dill salad for something cool and refreshing
• Cauliflower mash or mashed turnips if you want a cozy, spoonable side
• Low-carb dinner rolls or almond flour biscuits if you miss the bread basket

And let’s be real—sometimes all you need is a fork and a quiet corner to eat in. That counts too.

Frequently Asked Questions about Easy Low Carb Chicken Casserole

Can I use rotisserie chicken in this casserole?

Absolutely—rotisserie chicken is perfect here. It saves so much time, especially when the clock’s ticking and you just want dinner on the table. I’ll grab one mid-week if I haven’t had time to cook. Just remove the skin, shred the meat, and you’re good to go. Sometimes I even freeze extra chicken from a rotisserie bird just for this recipe!

How do I make it even creamier?

The key is making sure your cream cheese is fully softened before mixing. If it’s still cold and firm, it’ll clump—and nobody wants lumpy sauce. Here’s my little trick: I microwave the cream cheese for about 10–15 seconds so it whisks in smooth with the sour cream and heavy cream. The result? That rich, creamy texture we all love in a casserole.

Is this casserole freezer-friendly?

Yes, it freezes beautifully. You can either freeze it before baking (assembled but uncooked) or after baking (cooled and portioned). I often keep a pan of it frozen for surprise guests or last-minute dinners. Just be sure to wrap it tightly to prevent freezer burn, and bake it from thawed for the best results.

Can I swap out the broccoli for another veggie?

Definitely! If your family isn’t into broccoli, try zucchini, spinach, or green beans. I once ran out of broccoli during summer and used sautéed garden zucchini instead—it was a total hit. You can even mix and match depending on what’s in the fridge.

This wraps up all the must-know info on this easy low carb chicken casserole. Whether you’re using leftovers, prepping ahead, or feeding picky eaters, this dish has your back. And hey, if your family’s anything like mine, it might just become one of those meals they start requesting by name.

Print