There are low-carb casseroles that taste like diet food, and then there is this low carb creamy chicken casserole—the kind of rich, cheesy, velvety, deeply satisfying dish that makes you forget you are eating low-carb. Packed with tender chicken, broccoli, and a luxurious cream cheese and Parmesan sauce, this casserole is hearty, flavorful, and absolutely delicious. It is the perfect keto-friendly comfort food.
The beauty of this casserole is that it uses simple, wholesome ingredients. Chicken, broccoli, cream cheese, heavy cream, and Parmesan come together in a sauce so creamy and savory you will not miss the carbs. A sprinkle of cheddar on top creates a golden, bubbly crust. It is a complete meal in one dish.
This low carb creamy chicken casserole is perfect for busy weeknights, for meal prep, or for anyone following a keto or low-carb lifestyle. Serve it as is, or with a side salad.
Why You Will Love This Low Carb Creamy Chicken Casserole
· Rich, creamy, and cheesy: The ultimate comfort food.
· Low-carb and keto-friendly: Only 5 to 7 grams of net carbs per serving.
· Packed with protein: Chicken and cheese.
· One-dish meal: Minimal cleanup.
· Great for meal prep: Tastes even better the next day.
· Kid-approved and adult-pleasing.
· Customizable: Add different vegetables or cheeses.
Ingredients
Here is everything you need for low carb creamy chicken casserole:
For the Casserole:
· 2 pounds boneless, skinless chicken breasts or thighs, cut into bite-sized pieces
· 4 cups broccoli florets (about 1 medium head)
· 4 ounces cream cheese, softened and cut into cubes
· ½ cup heavy cream
· ½ cup low-sodium chicken broth
· 1 cup shredded cheddar cheese (divided)
· ½ cup grated Parmesan cheese
· 1 teaspoon garlic powder
· 1 teaspoon onion powder
· ½ teaspoon salt
· ¼ teaspoon black pepper
· ¼ teaspoon paprika (optional)
Optional Add-Ins:
· 8 ounces cremini mushrooms, sliced
· ½ cup diced sun-dried tomatoes (oil-packed, drained)
For Garnish:
· Fresh parsley, chopped
Step-by-Step Instructions
Step 1: Preheat and Prepare
Preheat your oven to 375 degrees Fahrenheit (190 degrees Celsius). Grease a 9×13-inch baking dish or a 3-quart casserole dish with non-stick spray or butter.
Step 2: Cook the Chicken
Heat a large skillet over medium-high heat. Add a tablespoon of oil. Add the chicken pieces and cook for 5 to 7 minutes, stirring occasionally, until browned and cooked through (internal temperature of 165 degrees Fahrenheit). If using chicken thighs, cook for 7 to 9 minutes. Transfer the chicken to the prepared baking dish.
Step 3: Steam or Blanch the Broccoli
Place the broccoli florets in a microwave-safe bowl with 2 tablespoons of water. Cover and microwave on high for 2 to 3 minutes until bright green and slightly tender. Drain well. (Alternatively, steam on the stovetop or blanch in boiling water for 2 minutes.) Add the broccoli to the baking dish with the chicken.
Step 4: Make the Creamy Sauce
In the same skillet used for the chicken, reduce the heat to medium. Add the cream cheese and stir until it begins to melt. Add the heavy cream and chicken broth, whisking until smooth. Add the garlic powder, onion powder, salt, pepper, and paprika. Whisk until combined.
Reduce the heat to low. Add ½ cup of the shredded cheddar cheese and the Parmesan cheese. Stir until the cheeses are melted and the sauce is smooth.
Step 5: Combine and Transfer
Pour the creamy sauce over the chicken and broccoli in the baking dish. Stir gently to combine. Spread into an even layer.
Step 6: Add the Topping
Sprinkle the remaining ½ cup of shredded cheddar cheese over the top.
Step 7: Bake
Bake uncovered for 15 to 20 minutes, until the casserole is bubbly and the cheese is melted and golden brown.
Step 8: Rest and Serve
Let the casserole rest for 5 to 10 minutes before serving. Garnish with fresh parsley.
Cooking Tips and Pro Tips for Best Results
· Use chicken thighs for extra juiciness: Boneless, skinless chicken thighs are more forgiving and stay juicier than breasts.
· Do not overcook the broccoli: Steam or blanch just until bright green and slightly tender. Overcooked broccoli becomes mushy in the casserole.
· Soften the cream cheese: Let cream cheese sit at room temperature for 30 minutes before using. This helps it melt smoothly.
· Use freshly grated cheese: Pre-shredded cheese contains anti-caking agents that prevent smooth melting.
· Add more vegetables: Mushrooms, spinach, or zucchini are excellent additions.
Variations and Substitutions
· Add mushrooms: Sauté 8 ounces of sliced cremini mushrooms with the chicken.
· Spinach chicken casserole: Add 2 cups of fresh spinach at the end, stirring until wilted.
· Buffalo chicken casserole: Add ¼ cup of buffalo sauce to the cream sauce and use pepper jack cheese.
· Bacon chicken casserole: Add ½ cup of crumbled cooked bacon.
· Dairy-free: Use dairy-free cream cheese, coconut cream, and dairy-free cheese.
· Add sun-dried tomatoes: Stir in ½ cup of chopped sun-dried tomatoes for extra flavor.
Serving Suggestions
This low carb creamy chicken casserole is delicious served:
· On its own: A complete, satisfying meal.
· Over cauliflower rice: For extra veggies.
· With a side salad: A crisp green salad with a tangy vinaigrette.
· With roasted vegetables: Green beans, asparagus, or Brussels sprouts.
Storage and Reheating Instructions
Refrigerator Storage
Store leftovers in an airtight container in the refrigerator for up to 5 days.
Freezer Storage
This casserole freezes well for up to 2 months. Cool completely, then transfer to a freezer-safe container. Thaw overnight in the refrigerator before reheating.
Reheating Instructions
· Oven method (best): Preheat to 325 degrees Fahrenheit. Cover with foil and heat for 15 to 20 minutes.
· Microwave method: Heat individual portions for 60 to 90 seconds.
Nutritional Information
Approximate per serving (based on 6 servings, with chicken breasts and heavy cream):
· Calories: 480
· Protein: 42g
· Fat: 30g
· Saturated Fat: 16g
· Carbohydrates: 8g
· Fiber: 2g
· Net Carbs: 6g
· Sugar: 3g
· Sodium: 580mg
· Vitamin A: 20% DV
· Vitamin C: 50% DV
· Calcium: 25% DV
· Iron: 10% DV
Note: Nutritional values are estimates and will vary based on specific ingredients and portion sizes.
Frequently Asked Questions
Can I use frozen broccoli?
Yes. Use 4 cups of frozen broccoli florets, thawed. Pat dry before adding.
Can I use leftover rotisserie chicken?
Yes. Use 4 cups of shredded rotisserie chicken. Skip the browning step and proceed with the sauce.
Why is my sauce grainy?
Grainy sauce can happen if the cream cheese is added cold or the heat is too high. Use softened cream cheese and low heat.
Can I add more vegetables?
Absolutely. Mushrooms, spinach, and zucchini are excellent additions.
Is this recipe gluten-free?
Yes, as written.
Can I make this in a slow cooker?
Sear the chicken first, then transfer to a slow cooker with the sauce ingredients. Cook on LOW for 3 to 4 hours. Add broccoli and cheese during the last 15 minutes.
How do I get a thicker sauce?
If the sauce is too thin, simmer it on the stovetop for a few minutes before adding to the casserole.
Can I double this recipe?
Use a larger baking dish (10×15-inch or a roasting pan). Increase baking time by 10 minutes.
Final Thoughts
Low carb creamy chicken casserole is the perfect keto-friendly comfort food. It is rich, cheesy, savory, and packed with tender chicken and broccoli. The creamy sauce is velvety and satisfying, and the cheddar topping becomes golden and bubbly. You will not miss the carbs.
This recipe is a weeknight hero. It is easy to make, uses simple ingredients, and tastes even better the next day. Customize it with mushrooms, spinach, or bacon. Serve it on its own or over cauliflower rice.
So sauté that chicken, steam that broccoli, and whisk together that creamy sauce. That is the beauty of low-carb cooking—big flavor, wholesome ingredients, and a whole lot of deliciousness.