If you’re searching for a hearty, low-carb dish that delivers all the warmth of classic comfort food, this creamy low-carb chicken casserole is it. Made with juicy chicken, flavorful vegetables, and a smooth, cheesy cream sauce, it’s the kind of dish that turns a regular dinner into something memorable — without loading up on carbs.
This recipe is a modern, low-carb take on the traditional baked casserole. It’s made with wholesome ingredients, full of flavor, and just right for anyone following a keto, gluten-free, or grain-free lifestyle. Whether you’re feeding a family or preparing meals for the week, this is a satisfying, one-pan solution you’ll want on repeat.
Ingredient Overview

Each component in this recipe has a purpose — to keep it creamy, flavorful, and low in carbohydrates. Let’s take a closer look:
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Cooked Chicken: Use shredded or chopped chicken breast or thigh meat. Rotisserie chicken is a great shortcut that adds extra flavor and moisture.
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Cream Cheese: The backbone of the creamy sauce. Full-fat cream cheese melts beautifully and gives the dish that signature richness.
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Heavy Cream: Works with the cream cheese to create a velvety texture. It also helps the sauce thicken naturally, without flour or cornstarch.
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Cheddar Cheese: Bold and melty, cheddar brings that classic casserole flavor. Feel free to blend it with mozzarella or another favorite cheese for a milder or stretchier texture.
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Broccoli: Adds fiber, color, and nutrients. Lightly steam it first so it stays firm after baking. You can also substitute with cauliflower, spinach, or zucchini.
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Onion & Garlic: Aromatics that build the flavor base. Sautéing them first makes a big difference in taste.
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Seasonings: A simple mix of salt, black pepper, paprika, and dried thyme enhances the savory, creamy components without overpowering them.
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Optional Additions: Cooked bacon, sautéed mushrooms, or a spoonful of Dijon mustard can give the dish extra layers of flavor.
If you’re avoiding dairy, there are workarounds. Use unsweetened plant-based milk, a vegan cream cheese alternative, and dairy-free cheese shreds — just note the texture may be slightly different.
Step-by-Step Instructions
This dish is easy to make and comes together in about 40 minutes. Here’s how to bring it to life:
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Preheat Oven: Set your oven to 375°F (190°C). Lightly coat a baking dish with oil or butter.
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Sauté Vegetables: In a skillet over medium heat, cook the chopped onion and garlic in a tablespoon of oil until softened. Add the broccoli and cook for 2–3 minutes until slightly tender but not mushy.
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Make the Sauce: Lower the heat and stir in the cream cheese. Once it starts to melt, pour in the heavy cream and whisk to form a smooth sauce. Stir in half of the shredded cheddar until melted and creamy.
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Add Chicken: Fold in the cooked chicken and season the mixture with paprika, thyme, salt, and pepper. Stir gently to coat everything evenly.
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Assemble: Pour the mixture into your prepared baking dish and spread it out evenly. Sprinkle the remaining cheddar cheese over the top.
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Bake: Bake uncovered for about 20–25 minutes, or until the cheese is bubbling and the top is golden brown.
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Cool Before Serving: Let the casserole rest for at least 5–10 minutes after baking. This gives the sauce time to settle and makes it easier to slice.
If you want a crispier cheese topping, broil for 2–3 minutes at the end — just watch closely to avoid burning.
Tips, Variations & Substitutions
Cooking Tips
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Use room-temperature cream cheese for smoother melting.
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Lightly steam or sauté vegetables first to avoid too much moisture in the casserole.
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Always grate cheese yourself for the best melting texture — packaged shredded cheese can be dry and clumpy.
Recipe Variations
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Parmesan Alfredo Style: Use grated parmesan instead of cheddar and add a dash of nutmeg for a creamy Alfredo-inspired version.
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Buffalo Chicken Casserole: Stir in buffalo sauce and top with blue cheese for a spicy twist.
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Southwest Spin: Add green chilies, taco seasoning, and pepper jack cheese for a Tex-Mex variation.
Substitutions for Special Diets
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Dairy-Free: Swap in plant-based milk, dairy-free cream cheese, and vegan cheese shreds.
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More Veggies: Replace or mix broccoli with other low-carb options like kale, cauliflower, zucchini, or green beans.
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Lower Fat: Use half-and-half instead of heavy cream and reduce the cheese slightly if you’re watching your fat intake.
When to Serve & What to Pair It With
This dish is flexible enough to work for a quick weeknight meal or meal prep for the week ahead.
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Serve with: A fresh garden salad, sautéed greens, or roasted vegetables.
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Meal Prep: Portion into individual containers for easy lunches or dinners.
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Crowd-Friendly: It’s a great choice for potlucks, family dinners, or when you need a reliable dish that works for different diets.
To drink, try a dry white wine like Pinot Grigio or a refreshing sparkling water with lemon.
Nutrition & Health Information
This casserole offers a solid balance of protein, fat, and fiber with very few carbs, making it a smart option for many eating styles:
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Keto-Friendly: High fat, moderate protein, and very low carbs
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Gluten-Free: No wheat, flour, or grains
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Diabetic-Friendly: Low glycemic impact and filling ingredients
Typical nutrition per serving:
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Calories: ~400
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Net Carbs: 6–8g
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Protein: 30g
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Fat: 25g+
If you want to lighten it up, reduce the cheese or use a lighter dairy option. You can also add more veggies to increase fiber and nutrients.
FAQs
Q1: Can I make this ahead of time?
Yes. Assemble the casserole and refrigerate it up to 24 hours before baking. Add 5–10 extra minutes to the bake time if it’s chilled.
Q2: Can it be frozen?
Absolutely. Let the baked casserole cool completely, then wrap and freeze. It keeps well for up to 3 months. Thaw overnight in the fridge and reheat in the oven.
Q3: What’s the best type of chicken to use?
Cooked, shredded chicken breast or thigh both work. Thigh meat adds more flavor and moisture.
Q4: Are there veggie alternatives to broccoli?
Yes! Cauliflower, green beans, zucchini, and spinach all make great substitutes. Just cook them first to avoid excess moisture.
Q5: Can I make it spicy?
Definitely. Add crushed red pepper flakes, hot sauce, or chopped jalapeños to give it a kick.
Q6: What can I add to make it even more filling?
Increase the protein with extra chicken or add-ins like hard-boiled eggs, cooked bacon, or sausage.
Q7: Can this be made in a slow cooker?
You can cook the mixture in a slow cooker on low for 2–3 hours, but for the best texture and cheesy crust, finish it in the oven or under the broiler.
A rich and satisfying low-carb chicken casserole made with creamy cheese, tender broccoli, and shredded chicken. Ideal for keto, gluten-free, and low-carb diets.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: 6 servings 1x
Ingredients
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3 cups cooked shredded chicken
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2 cups steamed broccoli florets
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1 small onion, diced
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2 cloves garlic, minced
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1 tbsp olive oil or butter
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8 oz cream cheese, softened
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1 cup heavy cream
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1½ cups shredded cheddar cheese, divided
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½ tsp salt
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¼ tsp black pepper
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½ tsp paprika
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¼ tsp dried thyme
Instructions
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Preheat oven to 375°F. Lightly grease a 9×13″ baking dish.
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In a skillet, cook onion and garlic in oil until soft. Add broccoli and cook 2–3 minutes.
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Lower heat and stir in cream cheese. Add cream and whisk until smooth. Mix in half the cheese.
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Fold in chicken and seasonings. Stir until evenly coated.
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Pour into baking dish. Top with remaining cheese.
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Bake for 20–25 minutes until bubbly and golden. Let cool before serving.
