Easy Low Carb Chicken Casserole for a Healthy Dinner

Featured in Dinner Classics.

Low Carb Chicken Casserole is a simple, healthy dinner. Creamy, cheesy, and packed with flavor, this easy recipe is perfect for weeknights.
Kaelen Atherton - Recipe Author
Updated on March 16, 2026 at 03:05 AM
Prep Time: 15 min Cook Time: 35 min Total Time: 50 min 6 Servings Beginner
Easy Low Carb Chicken Casserole for a Healthy Dinner - Featured Image Pin it
Easy Low Carb Chicken Casserole for a Healthy Dinner | Natura Recipes

Oh my goodness, friend, let me tell you about this recipe! I was seriously craving something warm and cozy, but, you know, trying to keep things low-carb. I scrolled and scrolled, feeling totally uninspired. Then, BAM! An idea sparked. I started messing around in the kitchen, throwing together all my favorite comfort ingredients. After a few tweaks, this incredible Low Carb chicken Casserole was born. It’s been a lifesaver ever since, especially on those busy weeknights!

Okay, so the first time I made this Low Carb chicken Casserole, I was so excited, I totally forgot to drain the broccoli. Like, really forgot. The casserole came out… soupy. Not in a good way, hon. It was still tasty, but definitely not the thick, creamy dream I was going for. Lesson learned: DRAIN. THAT. BROCCOLI. My kitchen looked like a mini swamp, oops!

Ingredients for a Stellar Low Carb Chicken Casserole

  • 2 lbs cooked shredded chicken breast: This is your superstar, your blank canvas! I usually cook a big batch of chicken in my Instant Pot at the start of the week just for recipes like this. It makes throwing together this Low Carb Chicken Casserole so much faster. Tender, juicy chicken is key to soaking up all that creamy sauce, making every bite satisfying and hearty. Don't skimp on the chicken, friend!
  • 12 oz frozen broccoli florets, thawed and well-drained: Okay, remember my 'oops' moment? Draining is non-negotiable! Thaw it first, then press out as much water as humanly possible with paper towels. You want tender-crisp broccoli, not soggy. It adds such a lovely bit of green and a slight earthy flavor that balances the richness of this dish. Trust me on the draining, it makes all the difference for our Low Carb Chicken Casserole.
  • 8 oz cream cheese, softened: Ah, the secret to ultimate creaminess! Make sure this baby is softened. Seriously, don't try to mix it cold unless you want a lumpy sauce been there, done that, not pretty. It melts beautifully into the heavy cream and broth, creating that luscious base that coats every piece of chicken and broccoli. It's what makes this casserole so incredibly comforting and rich.
  • 1/2 cup heavy cream: Heavy cream is our indulgence, the backbone of that velvety texture. It works hand-in-hand with the cream cheese to build a sauce that feels incredibly luxurious, yet still fits our low-carb goals. It's what transforms simple ingredients into something truly special. You'll notice the difference in how rich and decadent the sauce becomes when you add this in, creating the perfect base for our Low Carb Chicken Casserole.
  • 1 1/2 cups shredded sharp cheddar cheese, divided: Cheddar, oh cheddar! This is where the magic happens. I love sharp cheddar for its robust flavor that really stands up to the other ingredients. We're dividing it for a reason some goes in the casserole for internal cheesiness, and some goes on top for that gorgeous golden, bubbly crust. Don't buy pre-shredded if you can help it, fresh shreds melt so much better! It's the gooey heart of this Low Carb Chicken Casserole, honestly.
  • 1/4 cup grated Parmesan cheese: Parmesan is our little flavor booster! A sprinkle of this adds a salty, umami kick that just elevates everything. It's fantastic mixed into the sauce and even better sprinkled on top with the cheddar for that extra layer of cheesy, savory goodness. It helps create that perfect golden crust we all dream of, bringing a sophisticated edge to our cozy Low Carb Chicken Casserole.

Whipping Up Your Low Carb Chicken Casserole: A Step-by-Step Guide

Step 1: Preheat Oven & Prep:
First things first, get that oven nice and toasty to 375°F (190°C). While it's warming up, grab your 9x13 inch baking dish and give it a quick spray. This just ensures nothing sticks, making cleanup a breeze. And for the love of all that is holy, make sure your broccoli is thawed and squeezed DRY. Seriously, pat it down with paper towels like it owes you money! This simple prep makes all the difference for our Low Carb Chicken Casserole.
Step 2: Sauté Aromatics:
Heat up that olive oil in a large skillet over medium heat you want it shimmering, not smoking. Toss in your diced yellow onion and let it get soft and translucent, about 5-7 minutes. Oh, that smell! Then, add your minced garlic and cook for just another minute until fragrant. Don't let it burn! This step builds the foundational flavor for our entire dish, making this Low Carb Chicken Casserole sing.
Step 3: Create Creamy Sauce:
Now for the magic! Reduce the heat to low. Add your softened cream cheese to the skillet with the aromatics. Let it start to melt, then slowly whisk in the heavy cream and chicken broth. Keep stirring gently until it’s all smooth and lovely no lumps allowed! This rich, velvety sauce is what truly transforms our ingredients into a comforting Low Carb Chicken Casserole. Taste it, adjust seasoning if you like, but remember the cheese is coming!
Step 4: Combine Casserole Base:
Time to bring it all together! Gently fold in your cooked shredded chicken and that well-drained broccoli into the creamy sauce. Add 1 cup of the shredded sharp cheddar cheese now too. Stir until everything is beautifully coated and incorporated. You want every piece of chicken and every floret of broccoli swimming in that luscious, cheesy goodness. This is the heart of your Low Carb Chicken Casserole, feeling hearty and delicious already.
Step 5: Assemble & Top:
Pour that glorious mixture into your prepared baking dish. Spread it out evenly, getting into all the corners. Now for the grand finale before baking! Sprinkle the remaining 1/2 cup of shredded sharp cheddar cheese and all of the grated Parmesan cheese over the top. This isn't just for looks, hon, it creates that irresistible golden, bubbly crust that makes this Low Carb Chicken Casserole utterly irresistible. You'll be drooling just looking at it!
Step 6: bake to Golden:
Pop that dish into your preheated oven. Let it bake for about 25-30 minutes. You're looking for that perfect golden-brown, bubbly top and a wonderfully heated-through center. The kitchen will smell absolutely heavenly, I promise! Once it's done, pull it out and, this is crucial, let it rest for 5-10 minutes. This helps the sauce set up a bit, so it's not too runny when you serve your amazing Low Carb Chicken Casserole. Patience is a virtue here!

Honestly, there's something so therapeutic about making a casserole. The chopping, the stirring, the way your kitchen fills with those incredible aromas it's pure joy. This Low Carb Chicken Casserole has become my go-to for when I need a hug in a bowl, without the carb-induced guilt. It’s simple, satisfying, and just makes me feel good, you know?

Keeping Your Low Carb Chicken Casserole Fresh and Delicious

Got leftovers? Lucky you! This Low Carb Chicken Casserole actually tastes even better the next day, as the flavors really meld together. Just pop any remaining casserole into an airtight container and refrigerate it for up to 3-4 days. To reheat, you can microwave individual portions or warm a larger amount in the oven at 300°F (150°C) until heated through. I've tried freezing it too, and it works pretty well! Just make sure it's completely cooled, then cover it tightly or transfer to a freezer-safe container for up to 2-3 months. Thaw in the fridge overnight before reheating. My biggest mistake was not covering it well enough, and it got a bit freezer-burned don't make my mistake!

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Easy Low Carb Chicken Casserole for a Healthy Dinner - Image 1 | Natura Recipes

Swapping Things Up in Your Low Carb Chicken Casserole

I've experimented with so many variations of this Low Carb Chicken Casserole, and it's super forgiving! If broccoli isn't your jam, feel free to swap in other low-carb veggies like cauliflower florets, spinach (sautéed and squeezed dry!), or even some sliced mushrooms. For the chicken, leftover turkey works beautifully, or even cooked shrimp if you're feeling fancy. If you don't have sharp cheddar, a good Monterey Jack or a mix of mozzarella and provolone will do the trick. Just avoid super watery cheeses. I once tried a ricotta mix and it was too wet oops! Don't be afraid to play around with different herbs too, like a sprinkle of dried thyme or a pinch of smoked paprika for a different vibe.

Perfect Pairings for Your Low Carb Chicken Casserole

How to serve this glorious Low Carb Chicken Casserole? Oh, the possibilities! It's super hearty on its own, honestly, but if you want to round out the meal, a simple side salad with a tangy vinaigrette is always a winner. The freshness cuts through the richness of the casserole beautifully. For something a bit more substantial, a side of cauliflower rice (plain or garlic buttered!) is fantastic for soaking up any extra sauce. Sometimes I even serve it with a dollop of sour cream or a sprinkle of fresh chives on top for an extra burst of flavor. It's comfort food, so keep the sides simple and let our star shine!

The Comforting Story Behind Low Carb Chicken Casserole

You know, casseroles are such a quintessentially American comfort food, aren't they? They hail from a time when home cooks wanted easy, hearty, one-dish meals to feed a family. They were often budget-friendly and could stretch ingredients, making them perfect for potlucks and busy weeknights. This particular Low Carb Chicken Casserole is my modern take on that classic tradition. It brings all the warmth and ease of a traditional casserole but adapted it to fit a low-carb lifestyle, proving that you don't have to sacrifice flavor or comfort just because you're watching your carbs. It’s a nod to grandma's kitchen, with a healthy twist!

So there you have it, my friend! This Low Carb Chicken Casserole is truly a labor of love, born from a craving for comfort without the carbs. It's become a staple in my kitchen, and I just know it'll become one in yours too. Give it a whirl, tweak it to your heart's content, and make it your own. And please, please, please come back and tell me all about your experience in the comments below! Happy cooking!

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Easy Low Carb Chicken Casserole for a Healthy Dinner - Image 2 | Natura Recipes

Your Burning Questions About Low Carb Chicken Casserole, Answered!

Can I make this Low Carb Chicken Casserole ahead of time?

Absolutely! You can assemble the entire casserole (without baking) and cover it tightly, then refrigerate for up to 24 hours. Just add about 10-15 minutes to the baking time to ensure it heats through properly. It's a lifesaver for busy evenings!

Is there a dairy-free option for this recipe?

While I haven't personally perfected a dairy-free version, you could try using dairy-free cream cheese, unsweetened almond milk instead of heavy cream, and your favorite dairy-free shredded cheese blend. The texture might be a little different, but it's worth experimenting if you need it!

Can I add more vegetables to my Low Carb Chicken Casserole?

Yes, totally! Just be mindful of their water content. Sautéed mushrooms, steamed green beans, or even some riced cauliflower would be delicious additions. Make sure to cook and drain any high-water veggies thoroughly so your casserole doesn't get watery.

How do I make this casserole spicier?

Oh, I love a little kick! You could add a pinch of red pepper flakes when you're sautéing the garlic and onion. Or, for a milder warmth, a dash of smoked paprika works wonders. You could even stir in a bit of hot sauce to the creamy sauce mixture if you're feeling brave!

What if I don't have cooked chicken breast ready?

No worries at all! You can quickly boil, bake, or pan-fry chicken breasts until cooked through, then shred them. Rotisserie chicken is also a fantastic shortcut for this Low Carb Chicken Casserole just pull the meat off and shred it up! Easy peasy.

Easy Low Carb Chicken Casserole for a Healthy Dinner

Low Carb Chicken Casserole is a simple, healthy dinner. Creamy, cheesy, and packed with flavor, this easy recipe is perfect for weeknights.

4.1 out of 5
(79 reviews)
Prep Time
15 Minutes
Cook Time
35 Minutes
Total Time
50 Minutes

Category: Dinner Classics

Difficulty: Beginner

Cuisine: American

Yield: 6 Servings

Dietary: Gluten-Free, Diabetic-Friendly

Published: March 16, 2026 at 03:04 AM

Ingredients

→ The Hearty Core

01 2 lbs cooked shredded chicken breast
02 12 oz frozen broccoli florets, thawed and well-drained

→ Creamy Dream Sauce

03 8 oz cream cheese, softened
04 1/2 cup heavy cream
05 1/2 cup low-sodium chicken broth
06 1 tbsp olive oil
07 1/2 medium yellow onion, diced
08 2 cloves garlic, minced

→ Savory Seasonings & Golden Crown

09 1 1/2 cups shredded sharp cheddar cheese, divided
10 1/4 cup grated Parmesan cheese
11 1 tsp dried Italian seasoning
12 Salt and black pepper to taste

Instructions

Step 01

Preheat your oven to 375°F. Lightly grease a 9x13 inch baking dish. Ensure your 12 oz frozen broccoli florets are thawed and well-drained, and your 2 lbs cooked shredded chicken breast is ready. This initial prep sets the stage for your Easy Low Carb Chicken Casserole Recipe.

Step 02

In a large skillet over medium heat, add 1 tbsp olive oil. Sauté 1/2 medium yellow onion, diced, for 3-4 minutes until softened. Add 2 cloves garlic, minced, and cook for another minute until fragrant. Do not brown the garlic.

Step 03

Reduce heat to low. Add 8 oz cream cheese, softened, 1/2 cup heavy cream, and 1/2 cup low-sodium chicken broth to the skillet. Stir constantly until the cream cheese is fully melted and the sauce is smooth. Season with 1 tsp dried Italian seasoning, salt, and black pepper to taste.

Step 04

Remove the skillet from heat. Stir in the 2 lbs cooked shredded chicken breast, 12 oz thawed and drained broccoli florets, and 1 cup of the 1 1/2 cups shredded sharp cheddar cheese. Mix well to ensure everything is evenly coated in the creamy sauce for your Easy Low Carb Chicken Casserole Recipe.

Step 05

Transfer the chicken and broccoli mixture into the prepared 9x13 inch baking dish, spreading it evenly. Sprinkle the remaining 1/2 cup shredded sharp cheddar cheese and 1/4 cup grated Parmesan cheese over the top. This creates a delicious golden crown for your Easy Low Carb Chicken Casserole Recipe.

Step 06

Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly around the edges and the cheese topping is melted and golden brown. Keep an eye on it to prevent over-browning.

Step 07

Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows the sauce to set slightly, making it easier to portion and ensuring a perfect texture.

Notes

  1. For a different vegetable, try using thawed and drained spinach or cauliflower florets instead of broccoli. Adjust cooking time slightly if needed.
  2. Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently in the microwave or oven.
  3. Cook and shred your chicken breast ahead of time to make this casserole even quicker to assemble on a busy weeknight.
  4. Serve this hearty casserole with a simple side salad for a complete and satisfying low-carb meal.

Tools You'll Need

  • 9x13 inch baking dish
  • large skillet
  • mixing bowls
  • measuring cups
  • measuring spoons

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy
  • Chicken

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 607 kcal
  • Total Fat: 33 g
  • Total Carbohydrate: 8 g
  • Protein: 60 g

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Easy Low Carb Chicken Casserole for a Healthy Dinner

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