Creamy Low Carb Chicken Casserole Recipe tastes rich, cheesy, and cozy with tender bites of chicken tucked into a creamy, garlicky sauce and a golden bubbly top. It works perfectly for busy families, low carb eaters, or anyone who wants comfort food on the table in about 40 minutes from start to finish. I tested this on a Monday when my own kids side-eyed the word “low carb,” and they still scraped the pan clean.
Why Creamy Low Carb Chicken Casserole Recipe Is Worth It
This casserole gives all the creamy, cheesy comfort of classic chicken and rice, without the heavy carbs or food coma. You get juicy chicken, a velvety sauce, and a satisfying bake that fits into a low carb or keto plan.
You also prep everything in one skillet and one baking dish, so cleanup stays easy. Leftovers reheat like a dream, so you cook once and eat twice, which feels like a tiny weeknight miracle.
“This Creamy Low Carb Chicken Casserole Recipe tastes like cozy restaurant comfort food, but fits my macros and reheats perfectly for lunches. ★★★★★”
Ingredients You Need
Chicken and veggies
- 1.5 pounds boneless skinless chicken breasts, cut into 1 inch cubes
- Use thighs if you prefer richer flavor and extra tenderness.
- 2 tablespoons olive oil or avocado oil
- 1 small yellow onion, finely diced
- 2 cloves garlic, minced
- 1 small head broccoli, cut into small florets
- 1 small zucchini, diced
- 1 cup sliced mushrooms
- 1/2 cup red bell pepper, diced
Creamy low carb sauce
- 4 ounces cream cheese, softened
- I like full fat Philadelphia for the smoothest texture.
- 1 cup heavy cream
- 1/2 cup chicken broth, low sodium
- 1/2 cup sour cream
- 1 teaspoon Dijon mustard
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon smoked paprika
- 1/2 teaspoon dried thyme
- 1/2 teaspoon salt, plus more to taste
- 1/4 teaspoon black pepper
Cheese topping
- 1 cup shredded mozzarella cheese
- 1/2 cup shredded sharp cheddar cheese
- 2 tablespoons grated Parmesan cheese
Low carb “crunch” topping (optional but tasty)
- 1/3 cup crushed pork rinds
- 1 tablespoon melted butter
- 1 tablespoon grated Parmesan cheese
Pantry shortcuts and swaps
- Use rotisserie chicken (about 3 cups chopped) if you want to skip cooking raw chicken.
- Use frozen broccoli florets and frozen cauliflower rice if you want more bulk with very low carbs.
- Use pre shredded cheese, but pick a brand without starch fillers for better melting.
Equipment
- Large skillet or sauté pan
- 9×13 inch baking dish or similar casserole dish
- Cutting board and sharp knife
- Mixing bowl and whisk
- Measuring cups and spoons
Quick Tips & substitutions
- Pat chicken dry before cooking so it browns instead of steaming.
- Cut veggies small so they cook quickly and stay tender in the casserole.
- Use rotisserie chicken for a 10 minute prep shortcut.
- Swap heavy cream with half and half if you want fewer calories, but simmer longer to thicken.
- Use Greek yogurt instead of sour cream for extra protein and a slight tang.
- Use all mozzarella if you want extra stretch, or all cheddar if you want sharper flavor.
- Skip pork rinds and use crushed almond flour crackers for a different low carb crunch.
- Keep the casserole very low carb and skip carrots, peas, or starchy veggies.
- Taste the sauce before baking and adjust salt, pepper, or mustard so the flavor pops.
- Let the casserole rest 5 to 10 minutes after baking so the sauce thickens and slices hold together.
How to Make Creamy Low Carb Chicken Casserole
Step 1: Sauté veggies and aromatics
Heat 1 tablespoon oil in a large skillet over medium heat. Add onion and cook until it turns soft and translucent, about 4 minutes. Stir in garlic, mushrooms, zucchini, bell pepper, and broccoli, then cook until the veggies turn crisp tender, about 5 to 6 minutes. Season with a pinch of salt and pepper, then transfer veggies to a plate.
Step 2: Brown the chicken
In the same skillet, add the remaining 1 tablespoon oil. Add the chicken cubes in a single layer and cook, stirring occasionally, until the chicken browns on the outside and cooks through, about 6 to 8 minutes. Season with salt, pepper, and smoked paprika while it cooks so the flavor sticks to the chicken. Turn off the heat and keep the chicken in the skillet.
Step 3: Mix the creamy low carb sauce
In a mixing bowl, add softened cream cheese, heavy cream, chicken broth, sour cream, Dijon mustard, garlic powder, onion powder, dried thyme, salt, and black pepper. Whisk until the mixture turns smooth and creamy with no big cream cheese lumps. Taste and adjust seasoning with more salt, pepper, or mustard if you want a stronger flavor. If the sauce looks very thick, add 1 to 2 tablespoons extra broth.
Step 4: Combine chicken, veggies, and sauce
Preheat your oven to 375°F. Add the cooked veggies back into the skillet with the chicken and stir to combine. Pour the creamy sauce over the chicken and veggies, then stir until everything coats evenly. If you use rotisserie chicken, just mix chicken, veggies, and sauce in a large bowl.
Step 5: Transfer to baking dish and add cheese
Lightly grease a 9×13 inch baking dish. Pour the chicken and veggie mixture into the dish and spread it into an even layer. Sprinkle mozzarella, cheddar, and Parmesan evenly over the top. Make sure cheese reaches the edges so every bite tastes cheesy.
Step 6: Add low carb crunch topping
In a small bowl, mix crushed pork rinds, melted butter, and Parmesan. Sprinkle this mixture over the cheese layer. This topping gives a crunchy, almost breadcrumb style finish without the carbs. If you skip pork rinds, just bake with cheese only.
Step 7: Bake until bubbly and golden
Place the casserole in the oven and bake for 18 to 22 minutes, until the cheese melts and the edges bubble. If you want a deeper golden top, switch the oven to broil for 1 to 2 minutes and watch closely so nothing burns. Remove from the oven and let the Creamy Low Carb Chicken Casserole Recipe rest for 5 to 10 minutes so the sauce thickens and slices hold together nicely.
Recipe Variations
- Extra low carb: Swap some veggies for cauliflower rice and stir it in with the chicken before baking.
- Gluten free: The base recipe already avoids gluten, just confirm broth and seasonings list gluten free on the label.
- Keto higher fat: Use chicken thighs, extra cheese, and a bit more heavy cream for richer macros.
- Veggie packed: Add spinach, kale, or green beans for more fiber and color.
- Spicy version: Stir in red pepper flakes, a spoon of canned green chiles, or a drizzle of hot sauce.
- Vegan style idea: Use firm tofu or a plant based chicken substitute, coconut cream, vegan cream cheese, and dairy free shredded cheese.
- Kid friendly: Use mild cheddar only and skip smoked paprika if your kids dislike smoky flavor.
Ways to Serve Creamy Low Carb Chicken Casserole
- Spoon over steamed cauliflower rice or mashed cauliflower for a cozy bowl.
- Serve with a simple green salad with ranch or Caesar dressing.
- Pair with roasted green beans or asparagus for extra veggies.
- Scoop into lettuce cups for a fun low carb “wrap” style meal.
- Serve with sliced cucumbers, cherry tomatoes, and carrot sticks on the side for crunch.
Storage Success
Let the Creamy Low Carb Chicken Casserole Recipe cool to room temperature, then cover the dish tightly or portion into airtight containers. Store in the fridge for up to 4 days. Reheat single portions in the microwave or warm the whole dish in the oven at 325°F until hot in the center. For longer storage, freeze portions for up to 2 months, then thaw in the fridge overnight and reheat with a fresh sprinkle of cheese on top.
Ingredients
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9x13-inch baking dish and set aside.
- In a large skillet over medium heat, melt the butter. Add the minced garlic and cook for 1–2 minutes until fragrant, stirring frequently to avoid burning.
- Whisk in the heavy cream and add the cream cheese, stirring until the cream cheese is fully melted and the sauce is smooth.
- Stir in half of the shredded cheddar cheese and all of the Parmesan cheese, mixing until melted and well combined.
- Season the sauce with onion powder, Italian seasoning, salt, black pepper, and crushed red pepper flakes if using. Simmer for 2–3 minutes until slightly thickened, then remove from heat.
- In a large mixing bowl, combine the shredded chicken and steamed broccoli florets. Pour the creamy cheese sauce over the top and toss until everything is evenly coated.
- Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining shredded cheddar cheese over the top.
- Bake for 20–25 minutes, or until the casserole is bubbly and the cheese on top is melted and lightly golden.
- Remove from the oven and let stand for 5 minutes before serving. Garnish with chopped fresh parsley if desired and serve warm.
Notes
Approximate per serving (1/6 of recipe): 420 calories; fat 30 g; saturated fat 15 g; carbohydrates 6 g; fiber 2 g; sugars 2 g; protein 32 g; sodium 520 mg. Values are estimates and will vary based on exact ingredients, brands, and portion size.