Easy Low Carb Chicken Casserole
I learned this easy low carb chicken casserole on a busy weeknight when I needed something comforting, quick, and low in carbs — and it’s been a staple ever since. It’s a creamy, cheesy bake built on shredded chicken and low-carb veg, designed to be family-friendly and forgiving if you need to swap an ingredient. If you enjoy simple chicken dinners that stretch for lunches and taste great reheated, this is one to keep in your rotation; I also like to alternate it with lighter salads such as a bacon ranch chicken salad for a change of pace (bacon ranch chicken salad with cheddar).
Why you’ll love this dish
This casserole balances comfort-food flavors with low-carb sensibility. It’s saucy without relying on flour or pasta, full of protein, and easy to prep ahead. Perfect for weeknights, meal prep, or when you want something wholesome for guests without fuss.
“I made this on a Tuesday and had lunches ready for the whole week — creamy, satisfying, and everyone asked for seconds.” — a regular reader
Reasons it shines:
- Quick assembly: most of the work is shredding cooked chicken.
- Versatile: swap veggies or cheeses to match dietary needs.
- Family-friendly texture: creamy, not rubbery, when you don’t overbake.
- Low-carb and high-protein: great for keto or carb-conscious plans.
How this recipe comes together
Before you dive into the ingredients, here’s the simple roadmap:
- Cook and shred the chicken (use rotisserie to save time).
- Sauté aromatics and low-carb vegetables until soft.
- Mix chicken with a creamy, cheesy sauce and any seasonings.
- Transfer to a baking dish, top with extra cheese or crunchy toppings.
- Bake until bubbly and golden, then rest briefly before serving.
This overview helps you plan timing — while the oven preheats you can cook or shred chicken and prep veggies.
What you’ll need
- 3 cups cooked shredded chicken (rotisserie or poached works well)
- 2 cups cauliflower florets, chopped small (low-carb stand-in for potato)
- 1 small head broccoli, cut into florets (optional — can use more cauliflower)
- 1 small onion, finely diced
- 2 cloves garlic, minced
- 1 cup cream cheese, softened
- 1/2 cup sour cream or Greek yogurt (use full-fat for best texture)
- 1/2 cup heavy cream or chicken broth (for a lighter version)
- 1 1/2 cups shredded cheddar (or a blend of cheddar and mozzarella)
- 1/2 cup grated Parmesan
- 1 tsp Dijon mustard (optional — adds depth)
- 1 tsp dried thyme or a pinch of nutmeg (for warmth)
- Salt and black pepper to taste
- 2 tbsp olive oil or butter for sautéing
- Optional topping: crushed pork rinds, almond flour crumb, or extra cheese
- Fresh parsley for garnish
Substitutions/notes: Use cooked turkey instead of chicken in a pinch. Swap sour cream for full-fat plain yogurt for tang. Cauliflower rice can replace florets if you prefer a more casserole-like texture.
Step-by-step instructions
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish.
- If not using pre-cooked chicken, poach breasts: simmer gently in salted water 12–15 minutes until 165°F (74°C), then rest and shred.
- Heat oil or butter in a skillet over medium heat. Sauté onion 3–4 minutes until translucent. Add garlic and cook 30 seconds.
- Add cauliflower and broccoli to the skillet. Sauté 4–6 minutes until slightly tender but not mushy — they’ll finish in the oven.
- In a large bowl, whisk together cream cheese, sour cream, heavy cream (or broth), Dijon, thyme, and half the cheddar until smooth.
- Fold shredded chicken and cooked vegetables into the sauce. Taste and season with salt and pepper.
- Transfer mixture to the prepared baking dish. Sprinkle remaining cheddar and Parmesan on top. Add pork rind crumbs or almond flour if using.
- Bake 18–22 minutes until bubbling and the top is golden. For a crispier top, broil 1–2 minutes watching closely.
- Let rest 5 minutes, garnish with parsley, then serve.
Best ways to enjoy it
This casserole is hearty on its own but pairs well with crisp, bright sides to balance the creaminess:
- A simple green salad with lemon vinaigrette cuts richness.
- Steamed asparagus or a roasted vegetable tray for volume without many carbs.
- For another chicken-forward option that’s lighter and bright, try pairing your rotisserie or baked chicken nights with a balsamic baked chicken breast recipe for variety (balsamic baked chicken breast).
Serve in shallow bowls or straight from the baking dish for casual family-style dinners. Garnish with chopped chives or parsley for color.
Storage and reheating tips
- Refrigerate: Store leftovers in an airtight container for up to 3–4 days. Cool to room temperature no longer than two hours before refrigerating.
- Reheat: Warm single portions in the microwave for 1–2 minutes, stirring halfway. For best texture, reheat in a 350°F (175°C) oven covered with foil for 10–12 minutes.
- Freeze: Freeze up to 3 months. Portion into freezer-safe containers. Thaw in the refrigerator overnight before reheating. If you expect to freeze, underbake by 5 minutes before freezing and finish baking after thawing.
- Food safety: Reheat to an internal temperature of 165°F (74°C). Discard any leftovers kept longer than four days.
Pro chef tips
- Don’t overcook the vegetables in the skillet — they should still have some bite to avoid a mushy casserole.
- Use a mix of cheeses: sharper cheddar gives flavor while a melty cheese like mozzarella improves texture.
- Shortcut: Use store-bought rotisserie chicken to cut prep time in half.
- To reduce sodium, choose low-sodium chicken broth and skip added salt until after tasting.
- For crisp topping without breadcrumbs, pulse pork rinds or almonds for a keto-friendly crunch — a trick I borrowed from other easy chicken bakes when I want texture (try this easy chicken bake for inspiration on textures and toppings).
Creative twists
- Mexican-style: swap thyme for cumin and chili powder, use pepper jack and cheddar, top with sliced jalapeños and cilantro.
- Mediterranean: add artichoke hearts, sun-dried tomatoes, and feta; swap heavy cream for a splash of olive oil and more Greek yogurt.
- Bacon & mushroom: fold in cooked bacon and sautéed mushrooms for smoky depth.
- Lighter version: replace cream cheese with ricotta and use low-fat Greek yogurt; increase herbs and lemon zest for brightness.
Your questions answered
Q: Can I make this dairy-free?
A: Yes. Use dairy-free cream cheese and a plant-based yogurt, and swap cheddar for a dairy-free melting cheese. Texture will be slightly different; reduce added liquid a touch to keep it thick.
Q: How long does prep and cook take?
A: About 15–20 minutes prep (less if using rotisserie chicken) and 20–25 minutes baking — plan roughly 40–50 minutes total.
Q: Is this casserole freezer-friendly?
A: Absolutely. Freeze cooled casserole in portions up to 3 months. Thaw overnight in the fridge and reheat until piping hot.
Q: Can I use raw chicken in the casserole and bake it all together?
A: It’s possible but not recommended for even cooking. If you must, cut chicken into small, uniform pieces and increase bake time; confirm the internal temperature reaches 165°F (74°C).
Q: How can I make it lower calorie without losing creaminess?
A: Use full-fat Greek yogurt instead of heavy cream, reduce cheese slightly, and increase cauliflower to add bulk with fewer calories.
Conclusion
If you want a tested, low-carb weeknight casserole that’s flexible and reliable, this recipe delivers creamy comfort without the carbs. For another similar low-carb casserole approach with slightly different flavors, see this version with alternate mix-ins and techniques on That Low Carb Life (Low Carb Chicken Casserole – That Low Carb Life). And if you’re scouting more casserole-style chicken dinners to rotate through family meals, this take from The Foodie Affair offers helpful variations and serving ideas (Low Carb Chicken Casserole – Easy Dinner | The Foodie Affair).
Low Carb Chicken Casserole
Ingredients
Main Ingredients
- 3 cups cooked shredded chicken rotisserie or poached works well
- 2 cups cauliflower florets, chopped small low-carb stand-in for potato
- 1 small head broccoli, cut into florets optional, can use more cauliflower
- 1 small onion, finely diced
- 2 cloves garlic, minced
- 1 cup cream cheese, softened
- 1/2 cup sour cream or Greek yogurt use full-fat for best texture
- 1/2 cup heavy cream or chicken broth for a lighter version
- 1 1/2 cups shredded cheddar or a blend of cheddar and mozzarella
- 1/2 cup grated Parmesan
- 1 tsp Dijon mustard optional, adds depth
- 1 tsp dried thyme or a pinch of nutmeg for warmth
- to taste Salt and black pepper
- 2 tbsp olive oil or butter for sautéing
Optional Toppings
- to taste crushed pork rinds
- to taste almond flour crumb
- to taste extra cheese
Garnish
- Fresh parsley parsley for garnish
Instructions
Preparation
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish.
- If not using pre-cooked chicken, poach breasts: simmer gently in salted water 12–15 minutes until 165°F (74°C), then rest and shred.
- Heat oil or butter in a skillet over medium heat. Sauté onion 3–4 minutes until translucent. Add garlic and cook 30 seconds.
- Add cauliflower and broccoli to the skillet. Sauté 4–6 minutes until slightly tender but not mushy.
Mixing
- In a large bowl, whisk together cream cheese, sour cream, heavy cream (or broth), Dijon, thyme, and half the cheddar until smooth.
- Fold shredded chicken and cooked vegetables into the sauce. Taste and season with salt and pepper.
Baking
- Transfer mixture to the prepared baking dish. Sprinkle remaining cheddar and Parmesan on top. Add pork rind crumbs or almond flour if using.
- Bake 18–22 minutes until bubbling and the top is golden. For a crispier top, broil 1–2 minutes watching closely.
- Let rest 5 minutes, garnish with parsley, then serve.
