Looking for a hearty, comforting dinner that’s also low in carbs? This Easy Low Carb Chicken Casserole is exactly what you need. With tender chicken, creamy cheese sauce, and a medley of vegetables, it’s a weeknight winner that doesn’t compromise on flavor. Perfect for anyone following a keto or low-carb lifestyle, it’s also a hit with the whole family — whether or not they’re counting carbs.
Introduction: Comfort Food with a Low-Carb Twist
Casseroles have long been a staple of American kitchens, offering a convenient way to serve up warm, filling meals that satisfy even the hungriest crowd. Traditionally, many casseroles rely on pasta, rice, or potatoes — ingredients high in carbohydrates. This low carb chicken casserole reimagines that classic comfort with a healthier approach, removing starchy fillers and replacing them with nutrient-rich vegetables and a rich, cheesy base.
The origins of the casserole date back to the early 20th century, where economical one-dish meals became popular during wartime rationing. Over time, casseroles evolved from humble beginnings into a family favorite found in church potlucks, weeknight dinners, and holiday buffets. This version keeps the nostalgic feel but swaps in modern ingredients to support low-carb and keto diets without sacrificing taste or satisfaction.
Ingredients Overview
Here’s what you’ll need to build this rich and satisfying casserole — and why each ingredient plays a key role:
Chicken (3 cups, cooked and shredded or diced)
The star of the dish! Chicken is a high-protein, low-carb meat that adds substance and flavor. Use rotisserie chicken for convenience or leftover grilled chicken for a smoky depth.
Broccoli (2 cups, chopped)
Broccoli replaces traditional carbs like rice or pasta. It’s full of fiber, vitamins C and K, and adds a satisfying crunch when not overcooked.
Cream Cheese (8 oz)
This forms the creamy base of the sauce. It binds the ingredients together while keeping the casserole low in carbohydrates and high in fat—ideal for keto eaters.
Heavy Cream (½ cup)
Heavy cream lightens the cream cheese and creates a silky, rich sauce. It’s a classic keto-friendly dairy product that adds body and luxurious texture.
Shredded Cheddar Cheese (1½ cups, divided)
Cheddar adds sharpness and gooey cheesiness to the dish. A portion is mixed into the casserole while the rest goes on top to form that golden, bubbly finish.
Garlic Powder & Onion Powder (1 tsp each)
These powdered seasonings add depth and savoriness without adding moisture or carbs.
Dijon Mustard (1 tbsp)
A secret weapon in creamy dishes, Dijon mustard cuts through the richness with a subtle tang and enhances the overall flavor profile.
Salt & Pepper (to taste)
A little seasoning goes a long way to heighten the natural flavors of the dish.
Step-by-Step Instructions
1. Preheat and Prep
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish with nonstick spray or butter to prevent sticking.
2. Steam the Broccoli
Lightly steam chopped broccoli for about 3-4 minutes until it’s just tender but still vibrant green. Avoid overcooking — it will soften further in the oven.
3. Prepare the Creamy Sauce
In a medium saucepan over low heat, combine the cream cheese and heavy cream. Stir until the cream cheese melts completely and forms a smooth sauce. Add garlic powder, onion powder, Dijon mustard, salt, and pepper. Stir to incorporate.
The aroma at this stage is rich and tangy — a sign you’re building deep flavor.
4. Combine Ingredients
In a large mixing bowl, combine the shredded chicken, steamed broccoli, 1 cup of shredded cheddar, and the cream sauce. Mix until everything is evenly coated.
You’ll notice how the sauce clings beautifully to the chicken and broccoli, ensuring each bite is full of creamy, cheesy goodness.
5. Transfer to Baking Dish
Spoon the mixture into your prepared casserole dish, smoothing it out evenly.
6. Top with Cheese
Sprinkle the remaining ½ cup of cheddar cheese over the top. For added texture, you can also add a handful of grated parmesan or crushed pork rinds for a crispy topping.
7. Bake to Perfection
Bake uncovered for 20–25 minutes or until the cheese is melted, bubbly, and starting to brown. The edges will be golden, and the casserole should be hot throughout.
8. Cool Slightly Before Serving
Let the casserole rest for 5–10 minutes before slicing. This helps the cheese set slightly, making it easier to serve.
Tips, Variations, and Substitutions
Tips:
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Use Leftovers: Rotisserie chicken makes this recipe extra quick. Just shred and go.
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Don’t Skip Steaming: Par-cooking the broccoli prevents watery casseroles.
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Make Ahead: Assemble up to a day in advance and bake when ready.
Variations:
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Tex-Mex Twist: Add green chiles, cumin, and pepper jack cheese for a spicy variation.
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Italian-Inspired: Use mozzarella and a touch of marinara or sun-dried tomatoes for a Mediterranean spin.
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Bacon Boost: Crumbled cooked bacon adds smokiness and crunch.
Substitutions:
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Vegetables: Swap broccoli with cauliflower, zucchini, or spinach for variety.
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Cheese: Monterey Jack, Gruyère, or gouda are delicious swaps for cheddar.
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Dairy-Free: Use coconut cream and dairy-free cheese alternatives.
Serving Ideas & Occasions
This casserole shines as a weeknight dinner, meal prep favorite, or even as a potluck dish. Here are a few pairing ideas and settings where it fits right in:
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Serve with a simple side salad of arugula or mixed greens dressed with olive oil and lemon.
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For brunch: Pair with scrambled eggs or a crustless quiche.
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Meal prep: Divide into portions for a ready-to-go lunch that reheats well.
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Holiday table: A smart addition for guests on keto or gluten-free diets.
It’s filling enough to be a standalone meal but also pairs beautifully with low-carb sides.
Nutritional & Health Notes
This low carb chicken casserole is not only delicious but nutritionally balanced for those watching their carb intake:
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Protein-Rich: Chicken offers high-quality protein for muscle repair and sustained energy.
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Low Carb: With no pasta or breadcrumbs, the dish typically contains under 6g net carbs per serving.
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High in Healthy Fats: Thanks to cheese and cream, this dish fits easily into a ketogenic eating plan.
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Vegetable-Focused: Broccoli adds fiber, vitamin C, and antioxidants.
To reduce fat slightly, substitute part of the heavy cream with Greek yogurt or light cream cheese.
FAQ
1. Can I freeze this low carb chicken casserole?
Yes. After baking, let it cool completely, then wrap tightly with foil or transfer to an airtight container. Freeze for up to 2 months. Reheat from frozen at 350°F for 30–40 minutes.
2. Can I make this recipe dairy-free?
Absolutely. Use dairy-free cream cheese (like almond- or coconut-based), full-fat coconut cream, and vegan shredded cheese alternatives. Taste may vary slightly, but it remains rich and creamy.
3. What are the best veggies to use in place of broccoli?
Cauliflower, green beans, or chopped spinach work well. Aim for low-carb, non-starchy vegetables that hold up to baking.
4. Is this casserole keto-friendly?
Yes. Each serving contains a good balance of fat, protein, and minimal carbohydrates, making it ideal for ketogenic diets.
5. How do I keep the casserole from getting watery?
Steam veggies lightly — avoid boiling them — and drain any excess moisture. Using pre-cooked chicken also prevents extra liquid during baking.
6. Can I use canned chicken or tuna?
Yes, drained canned chicken works well for a quick fix. Tuna can also be used, but it will change the flavor profile.
7. How long will leftovers last in the fridge?
Store in an airtight container for up to 4 days. Reheat in the microwave or oven until hot throughout.