Easy Low Carb Chicken Casserole Recipe
If you’re on the lookout for a comforting meal that fits perfectly into a low-carb diet without sacrificing flavor, this Easy Low Carb Chicken Casserole will quickly become your new favorite. It’s packed with tender chicken, crispy bacon, vibrant veggies, and a luscious blend of cheeses all brought together with creamy ranch dressing. The result is a hearty, satisfying dish that feels indulgent but keeps things light and wholesome. Whether you’re cooking for your family or prepping meals ahead, this casserole strikes the perfect balance of ease, nutrition, and crowd-pleasing taste.

Ingredients You’ll Need
The beauty of this Easy Low Carb Chicken Casserole lies in its simple, essential ingredients—each one playing a key role to build layers of texture and flavor. From the protein-packed chicken and savory bacon to the freshness of the greens and the melty, gooey cheeses, every component makes this dish feel comforting yet balanced.
- 4 cups diced or shredded cooked chicken breast: The hearty protein base that keeps the casserole filling and flavorful.
- 8 slices cooked and chopped bacon: Adds smoky crunch and an irresistible savory punch.
- 5 cups broccoli florets OR 1 pound thawed frozen spinach (well-drained): A vibrant green veggie choice to boost nutrition and freshness.
- 3 cloves minced garlic: Provides aromatic warmth and depth to the entire dish.
- 1 cup ranch dressing: Creamy binder that infuses every bite with zesty, tangy flavor.
- 1/2 cup shredded mozzarella cheese: Melts perfectly for a smooth, stretchy texture inside the casserole.
- 1/2 cup shredded cheddar cheese: Adds sharpness and richness alongside mozzarella.
- 1/2 cup shredded mozzarella cheese (for topping): Ensures a golden, bubbly, and irresistible crust.
- 1/2 cup shredded cheddar cheese (for topping): Gives the topping a beautiful color and extra cheesiness.
- Optional: 1-3 teaspoons ranch seasoning mix: Boosts the ranch flavor for those who love an extra punch.
How to Make Easy Low Carb Chicken Casserole
Step 1: Prepare Vegetables
Start by choosing your vegetable base—fresh broccoli or frozen spinach both work wonderfully. If you go with fresh broccoli florets, give them a quick boil for 1 to 2 minutes until they turn a vibrant green, then drain thoroughly. For frozen spinach, make sure to thaw it completely and press out every bit of excess water. Getting the veggies perfectly prepped ensures your casserole won’t be watery and will maintain its texture.
Step 2: Combine the Main Ingredients
In a large mixing bowl, toss together the diced or shredded cooked chicken breast, chopped crispy bacon, prepared vegetables, and minced garlic. Add the creaminess of ranch dressing and the melty goodness of shredded mozzarella and cheddar cheese. For those who like a little extra flavor, sprinkle in some ranch seasoning mix. If you want to save on dishwashing, you can mix everything right in your casserole dish instead—easy and efficient!
Step 3: Transfer to Casserole Dish
Once everything is combined, transfer the mixture to a 9 by 13 inch casserole dish. This size is perfect for evening out the layers and ensures even cooking without needing to overcrowd your ingredients.
Step 4: Add the Cheese Topping
Top your casserole with the remaining shredded mozzarella and cheddar cheese. This creates that classic golden, bubbly crust that’s utterly irresistible. Spread the cheese evenly to make sure every forkful has a little cheesy goodness on top.
Step 5: Bake and Serve
Pop the casserole into a preheated oven at 375°F (191°C) and bake for about 15 minutes, or until the cheese topping is melted, hot, and bubbly. When it’s done, let it cool just a bit before serving so the casserole sets nicely but maintains its ooey-gooey texture. It’s ready to be devoured!
How to Serve Easy Low Carb Chicken Casserole

Garnishes
A sprinkle of freshly chopped parsley or green onions adds a pop of color and a burst of freshness that balances the richness of the cheese and bacon. A light dusting of crushed red pepper flakes can also bring a subtle heat that livens up each bite.
Side Dishes
This casserole stands on its own as a satisfying low-carb meal, but if you want to round it out, pair it with a crisp side salad or a light cucumber and tomato salad. Roasted cauliflower or sautéed green beans with garlic are excellent keto-friendly sides that keep everything fresh and nutritious.
Creative Ways to Present
For a fun twist at dinner parties or family meals, serve the casserole in individual ramekins or small cast-iron skillets. Another creative idea is spooning it over cauliflower rice for an extra vegetable boost while keeping it low carb. This way, your Easy Low Carb Chicken Casserole can be enjoyed in a variety of stylish and inviting ways.
Make Ahead and Storage
Storing Leftovers
This casserole stores beautifully in an airtight container in the refrigerator for up to 3 to 4 days. It’s a fantastic option for meal prep or quick weeknight dinners. Just keep in mind that the topping may lose some of its original crispness but will remain delicious.
Freezing
You can freeze the casserole either before or after baking. If freezing before, assemble everything in a freezer-safe dish and cover tightly with foil and plastic wrap to prevent freezer burn. It will last for up to 3 months. When ready to bake, thaw overnight in the fridge and then follow the baking instructions. If freezing after baking, cool completely then freeze in portions for easy reheating later.
Reheating
Reheat leftover Easy Low Carb Chicken Casserole in the oven at 350°F (175°C) until warmed through, about 15 to 20 minutes. To bring back some crispiness, avoid covering the dish. Alternatively, a microwave can be used for quicker reheating but may soften the topping slightly.
FAQs
Can I use other vegetables besides broccoli or spinach?
Absolutely! You can try cauliflower florets, zucchini, or even asparagus tips. Just be sure to cook them ahead to remove excess moisture for the best casserole texture.
Is this casserole suitable for meal prep?
Yes! This Easy Low Carb Chicken Casserole reheats wonderfully and keeps well for multiple days, making it perfect for prepping meals ahead of time.
Can I make this casserole dairy-free?
While cheese is a big part of the comforting texture and flavor, you can substitute dairy-free shredded cheese alternatives and use a dairy-free ranch dressing to make it vegan-friendly if needed.
How can I add more spice to this casserole?
Adding ranch seasoning mix is a great start, but you could also toss in some chopped jalapeños, a sprinkle of cayenne pepper, or hot sauce to kick up the heat according to your taste.
What if I don’t have cooked chicken breast?
No worries! Precook your chicken by baking, poaching, or using leftover rotisserie chicken. Just make sure it’s cooled and shredded or diced for easy mixing into the casserole.
Final Thoughts
There’s something truly special about a dish that feels both like a treat and a nutritious meal, and this Easy Low Carb Chicken Casserole is exactly that. It’s simple to whip up, packed with flavor, and tailor-made for anyone wanting a comforting dinner without the carb overload. Trust me, once you try it, it’ll become your go-to recipe for busy nights or anytime you crave a cheesy, savory casserole fix. So grab those ingredients, preheat your oven, and get ready to enjoy a delicious low-carb delight!
PrintEasy Low Carb Chicken Casserole Recipe
This Easy Low Carb Chicken Casserole is a comforting, flavorful dish perfect for a nutritious weeknight dinner. Packed with protein-rich chicken, crunchy bacon, and vibrant vegetables like broccoli or spinach, all combined in a creamy ranch dressing base and topped with gooey mozzarella and cheddar cheese. It’s simple to prepare, gluten-free, and perfect for those following a low-carb diet.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: 6 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Ingredients
For the Casserole:
- 4 cups diced or shredded cooked chicken breast
- 8 slices cooked and chopped bacon
- 5 cups broccoli florets OR 1 pound thawed frozen spinach (well-drained)
- 3 cloves minced garlic
- 1 cup ranch dressing
- 1/2 cup shredded mozzarella cheese
- 1/2 cup shredded cheddar cheese
For the Topping:
- 1/2 cup shredded mozzarella cheese
- 1/2 cup shredded cheddar cheese
Optional:
- 1–3 teaspoons ranch seasoning mix (for added flavor)
Instructions
- Prepare Vegetables: Preheat your oven to 375°F (191°C). If using frozen spinach, thaw it completely and squeeze out any excess water to avoid a soggy casserole. If you prefer fresh broccoli, boil the florets for 1–2 minutes until bright green, then drain well.
- Combine the Main Ingredients: In a large bowl, mix together the diced or shredded cooked chicken, chopped bacon, prepared broccoli or spinach, minced garlic, ranch dressing, 1/2 cup shredded mozzarella, and 1/2 cup shredded cheddar cheese. Stir until everything is evenly combined. If you want a stronger ranch flavor, add 1-3 teaspoons of ranch seasoning mix. For fewer dishes, you can mix directly in your casserole dish.
- Transfer to Casserole Dish: Pour the mixture into a 9×13 inch (23×33 cm) casserole dish, spreading it evenly to ensure it cooks consistently.
- Add the Cheese Topping: Evenly sprinkle the remaining 1/2 cup mozzarella and 1/2 cup cheddar cheese over the top of the casserole for a golden, cheesy crust.
- Bake and Serve: Bake in the preheated oven for about 15 minutes, or until the cheese topping is hot, bubbly, and lightly browned. Remove from the oven, allow to cool slightly for a few minutes, then serve warm for a comforting low-carb meal.
Notes
- You can substitute fresh or frozen vegetables based on preference, but ensure spinach is well-drained to prevent excess moisture.
- Cook bacon ahead of time to save preparation time on the day you make the casserole.
- For a dairy-free version, use dairy-free ranch dressing and cheese substitutes.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
- Add ranch seasoning gradually, tasting as you go to avoid overpowering the flavors.
Nutrition
- Serving Size: 1/6 of casserole (approx. 1 cup)
- Calories: 310
- Sugar: 2g
- Sodium: 610mg
- Fat: 20g
- Saturated Fat: 9g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 2g
- Protein: 28g
- Cholesterol: 110mg
Keywords: low carb chicken casserole, easy chicken casserole, keto chicken casserole, broccoli chicken bake, spinach chicken bake, ranch chicken casserole, cheesy chicken casserole