Amazing Low Carb Chicken Casserole 15 Min Prep

November 4, 2025
Written By Olivia Rosewood

You know those nights? The ones where the idea of cooking feels like climbing Mount Everest after a marathon? Yeah, I’ve been there. It’s exactly why I started DelishCraze – to bring back the joy of weeknight meals that are actually *easy* and *delicious*. This low carb chicken casserole is one of my absolute favorites for those crazy evenings. It’s cheesy, packed with protein, and uses simple ingredients you probably already have. It reminds me of when I was trying to reconnect with my kitchen after a hectic career, needing quick, family-pleasing meals that didn’t sacrifice flavor or my low-carb lifestyle. This bake is the perfect solution!

Why You’ll Love This Easy Low Carb Chicken Casserole

Seriously, this recipe is a lifesaver on busy nights. Here’s why it’ll become a favorite in your house too:

  • Super Speedy: You can have this in the oven in about 15 minutes. Dinner is served before you know it!
  • Effortlessly Cheesy: It’s loaded with cheddar and cream cheese, making it super creamy and satisfying.
  • Packed with Protein: Chicken and cheese make this a great high-protein meal to keep you full.
  • Family Approved: Even the pickiest eaters in my house gobble this up. It’s pure comfort food!
  • Low Carb & Gluten-Free: Enjoy all the creamy, cheesy goodness without the carbs or gluten.

Gather Your Ingredients for a Delicious Low Carb Chicken Casserole

Alright, let’s get this yummy casserole going! You won’t believe how simple it is. For this amazing low carb chicken casserole, you’ll just need a few bits and bobs:

  • Cooked Shredded Chicken: About 2 cups. I always try to use rotisserie chicken when I’m in a hurry – it’s already cooked and super flavorful!
  • Broccoli Florets: 1 cup, just lightly steamed so they’re tender but still have a little bite.
  • Cream Cheese: 4 ounces, make sure it’s softened so it mixes in smoothly.
  • Sour Cream: 1/2 cup. This is key for that amazing creamy texture.
  • Shredded Cheddar Cheese: 1/2 cup. Use your favorite sharp cheddar, trust me!
  • Mayonnaise: 1/4 cup. Don’t skip this – it adds to the richness!
  • Garlic Powder: 1 teaspoon.
  • Onion Powder: 1/2 teaspoon.
  • Salt and Pepper: Just to taste, of course.
  • Optional Bacon Bits: 1/4 cup, chopped cooked bacon if you’re feeling extra indulgent. Who doesn’t love bacon?

Just grab these, and we’re almost there!

Step-by-Step Guide to Making Your Low Carb Chicken Casserole

Okay, so you’ve got your ingredients ready, right? Great! Now for the fun part – making this amazing low carb chicken casserole. It’s honestly so simple, you’ll be wondering why you haven’t made it every week!

Preheating and Preparing Your Low Carb Chicken Casserole Dish

First things first, let’s get that oven fired up to 375°F (190°C). You want it nice and hot so everything cooks evenly. While that’s happening, grab an 8×8 inch baking dish and give it a little grease. A quick spray of cooking oil or a smear of butter works perfectly to stop anything from sticking. Trust me, a little prep here saves a lot of scrubbing later!

Combining Ingredients for the Creamy Chicken Bake

Now, into a big ol’ bowl goes almost everything! Add your yummy shredded chicken, the tender steamed broccoli, the softened cream cheese (I usually just leave it on the counter for about 30 minutes while I gather other stuff), sour cream, that glorious cheddar cheese, mayo, garlic powder, onion powder, and a pinch of salt and pepper. If you’re feeling fancy, toss in those optional bacon bits now too. Mix it all up until it’s beautifully combined and creamy. Don’t overmix though, just get everything nicely married together.

Baking Your Perfect Low Carb Chicken Casserole

Pour that lovely mixture into your greased baking dish and spread it out evenly. Pop it into your preheated oven for about 20 to 25 minutes. You’re looking for it to be bubbly around the edges and heated all the way through. It should smell absolutely divine! Once it’s ready, pull it out carefully – it’ll be hot! Let it sit for just a few minutes before you dig in. This helps everything set up so you get that perfect slice every time. You can find tons of other quick and easy weeknight dinners inspiration on our site too!

Tips and Substitutions for Your Keto Chicken Casserole

This keto chicken casserole is super adaptable, which is one of the things I love most about it! It’s so forgiving, you can really make it your own. These little tweaks and swaps make it perfect every time. Think of it like my broccoli cheddar soup – we can play around with ingredients!

Vegetable Swaps for a Versatile Low Carb Chicken Casserole

Broccoli is great, but feel free to mix it up! Cauliflower florets (also lightly steamed) are a fantastic swap, or even some finely chopped spinach wilted right into the mix. Some chopped zucchini or bell peppers (just a little!) can add extra color and flavor too, just make sure they’re cooked until tender-crisp before adding.

Binder and Cheese Options for Your Creamy Chicken Bake

The cream cheese and sour cream are what give this creamy chicken bake its luscious texture, so I wouldn’t mess with those too much unless you have to! If you’re not a cheddar fan, try Monterey Jack, a spicy pepper jack, or even a good old Mexican blend. They all melt beautifully and add a wonderful depth of flavor.

Make-Ahead and Meal Prep Friendly Low Carb Chicken Casserole

One of the things I absolutely adore about this low carb chicken casserole is that it’s a total meal prep champ! Seriously, you can totally get a head start on those busy weeknights. Just assemble the whole thing in your greased baking dish, cover it up tight with some plastic wrap or foil, and pop it in the fridge. It’ll keep well for up to two days like that. When you’re ready to bake, just pull it out, maybe let it sit on the counter for 10-15 minutes if it’s super cold, and then bake it as usual. You might need to add just a few extra minutes to the baking time since it’s starting out cold, but it’s totally worth it for a stress-free dinner. Check out all our tips for quick and easy weeknight dinners for more ideas like this!

Serving Suggestions for Your Gluten Free Dinner

This casserole is so hearty and delicious on its own, but it really shines when you pair it with a few simple sides. I love serving it with some crispy zucchini fritters for a little crunch, or maybe some creamy garlic parmesan mashed cauliflower for that comforting vibe. A simple side salad with a light vinaigrette is always a good idea too!

Storage and Reheating Your Low Carb Chicken Casserole

Got leftovers? Lucky you! This amazing low carb chicken casserole is just as good, if not better, the next day. Just pop any that are left into an airtight container and pop it in the fridge. It’ll keep nicely for about 3-4 days. When you’re ready for round two, you can pop a serving in the microwave for a quick reheat, or if you want to get it all bubbly and delicious again, pop it in a 350°F (175°C) oven for about 10-15 minutes until it’s warmed through. Easy peasy!

Frequently Asked Questions about Low Carb Chicken Casserole

Got questions? I’ve got answers! It’s always good to know the little details, especially when you’re whipping up a new favorite. Here are some things people often ask about this yummy low carb chicken casserole:

Can I make this low carb chicken casserole dairy-free?

Honestly, this one is super cheesy, so going dairy-free would change it quite a bit! You could try using a dairy-free cream cheese and shredded cheese alternative, along with a dairy-free sour cream substitute and coconut milk or a plain dairy-free creamer. It might alter the texture a bit, but it’s worth a shot if you need to!

What are good high protein additions to this chicken and cheese casserole?

Great question! Besides the chicken and cheese, you can totally boost the protein with some crumbled, cooked sausage or even some diced ham. Adding a few extra ounces of shredded chicken is always a simple way to bump it up, or consider stirring in some cooked edamame for a little extra plant-based protein power. You can find even more ideas for high protein dinners over here!

How can I make this chicken casserole spicier?

Oh, for a little kick! Easy peasy. You can stir in some red pepper flakes with the other seasonings, or toss in a dash or two of your favorite hot sauce. A little sprinkle of cayenne pepper would work too. Or, if you’re feeling adventurous, try adding some finely diced jalapeños (fresh or pickled!) or even those amazing candied jalapenos for a sweet and spicy surprise!

Nutritional Information for This Easy Weeknight Casserole

Just so you know, these numbers are estimates and can totally change depending on the exact brands you use and how big your portions are! But generally, this delicious bake comes in around 450 calories per serving, with about 30g of fat (don’t worry, a good chunk is the good stuff!), a hefty 35g of protein to keep you satisfied, and only about 7g of carbs. It’s a fantastic way to enjoy a comforting meal without all the carbs!

Share Your Delicious Creations!

I’d absolutely LOVE to hear what you think of this easy cheesy chicken bake! Did you try it? What did your family think? Leave a comment below and let me know, or even better, snap a picture and tag me on social media! Your delicious creations always inspire me! You can also reach out via my contact page if you have any questions!

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Easy Low Carb Chicken Casserole

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A simple, cheesy, and high-protein chicken casserole perfect for weeknight dinners. This low-carb and gluten-free recipe is family-friendly and easy to prepare.

  • Author: oliviarosewood
  • Prep Time: 15 min
  • Cook Time: 25 min
  • Total Time: 40 min
  • Yield: 4 servings 1x
  • Category: Dinner
  • Method: Baking
  • Cuisine: American
  • Diet: Low Carb

Ingredients

Scale
  • 2 cups cooked shredded chicken
  • 1 cup broccoli florets, steamed
  • 4 ounces cream cheese, softened
  • 1/2 cup sour cream
  • 1/2 cup shredded cheddar cheese
  • 1/4 cup mayonnaise
  • 1 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and pepper to taste
  • Optional: 1/4 cup chopped cooked bacon

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. In a large bowl, combine the shredded chicken, steamed broccoli florets, cream cheese, sour cream, cheddar cheese, mayonnaise, garlic powder, onion powder, salt, and pepper.
  3. If using, stir in the chopped bacon.
  4. Mix all ingredients until well combined.
  5. Pour the mixture into a greased 8×8 inch baking dish.
  6. Bake for 20-25 minutes, or until the casserole is heated through and bubbly.
  7. Let it rest for a few minutes before serving.

Notes

  • For a different flavor, you can swap cheddar cheese for Monterey Jack or a Mexican blend.
  • Add other low-carb vegetables like cauliflower or spinach.
  • This casserole can be assembled ahead of time and refrigerated before baking. Add a few extra minutes to the baking time if baking from cold.
  • Reheat leftovers in the oven or microwave.

Nutrition

  • Serving Size: 1 serving
  • Calories: 450
  • Sugar: 3g
  • Sodium: 500mg
  • Fat: 30g
  • Saturated Fat: 15g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 7g
  • Fiber: 2g
  • Protein: 35g
  • Cholesterol: 120mg

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