Easy Low Carb Chicken Casserole

Looking for a comforting meal that won’t weigh you down? This Easy Low Carb Chicken Casserole is everything you love about a creamy, cheesy bake—without the extra carbs. It’s loaded with tender chicken, smoky bacon, vibrant broccoli (or spinach), and a creamy ranch-cheese blend that melts beautifully into a satisfying, oven-baked dish.

Perfect for busy weeknights, meal prep, or even a casual family gathering, this recipe brings all the flavor and none of the carb overload. It’s gluten-free, low carb, keto-friendly, and incredibly easy to throw together with just a few pantry staples.

Why You’ll Love This Easy Low Carb Chicken Casserole

• Low carb & high protein – Great for keto or clean eating diets.
• Super creamy – Thanks to ranch dressing and a blend of cheeses.
• Customizable – Use broccoli or spinach, add ranch seasoning or switch up the cheese.
• Perfect for leftovers – Reheats well and makes an easy lunch.
• Ready in 30 minutes – With minimal prep and bake time.

Ingredients (Serves 4)

For the Casserole:

• 4 cups diced or shredded cooked chicken breast
• 8 slices cooked and chopped bacon
• 5 cups broccoli florets or 1 pound frozen spinach, thawed and drained
• 3 cloves garlic, minced
• 1 cup ranch dressing
• ½ cup shredded mozzarella cheese
• ½ cup shredded cheddar cheese

For the Topping:

• ½ cup shredded mozzarella cheese
• ½ cup shredded cheddar cheese

Optional:

• 1–3 teaspoons ranch seasoning mix (for extra flavor)

Step-by-Step Instructions

Step 1: Prepare the Vegetables

Preheat your oven to 375°F (191°C).

• If using frozen spinach, thaw completely and squeeze out all excess moisture.
• If using fresh broccoli, boil for 1–2 minutes until bright green and tender-crisp. Drain well.

Step 2: Combine the Ingredients

In a large bowl, mix together:

• Cooked chicken
• Chopped bacon
• Prepared vegetables
• Minced garlic
• Ranch dressing
• ½ cup mozzarella and ½ cup cheddar cheese

Add optional ranch seasoning mix if you’d like a more intense flavor. You can also mix everything directly in your casserole dish to save on cleanup.

Step 3: Assemble the Casserole

Transfer the mixture into a greased 9×13-inch casserole dish and spread it evenly.

Step 4: Add the Cheese Topping

Sprinkle the remaining ½ cup mozzarella and ½ cup cheddar cheese over the top.

Step 5: Bake

Bake uncovered for 15–18 minutes, or until the casserole is heated through and the cheese is bubbling and lightly golden.

Let it rest for a few minutes before serving.

Serving Suggestions

This easy low carb chicken casserole is incredibly versatile. Serve it with:

• A fresh garden salad or cucumber-tomato salad
• Roasted cauliflower or green beans
• A side of cauliflower rice or mashed turnips
• Low-carb tortillas for a wrap-style meal

Tips for Success

• Use rotisserie chicken to save time and add flavor.
• Drain veggies well—especially spinach—to avoid a watery casserole.
• Mix cheeses for deeper flavor (try pepper jack or gouda).
• Add more veggies like mushrooms, zucchini, or bell peppers for variety.

Variations to Try

• Spicy Kick: Add red pepper flakes or diced jalapeños.
• Buffalo Twist: Swap ranch for buffalo sauce and use blue cheese crumbles.
• Breakfast Style: Use sausage instead of chicken and add scrambled eggs.
• Creamier Base: Mix in a few tablespoons of cream cheese for extra richness.

Make-Ahead & Storage

• Make ahead: Assemble the casserole up to 24 hours in advance. Store covered in the fridge and bake when ready.
• Store leftovers: Keep in an airtight container in the fridge for up to 4 days.
• Freeze: Freeze baked or unbaked (without the cheese topping). Thaw in the fridge overnight and bake as usual.
• Reheat: Warm in the oven at 350°F or in the microwave until heated through.

Why It’s Perfect for Any Season

This casserole works well all year round. In winter, it’s warm, hearty, and comforting. In summer, it’s light enough to enjoy with a crisp salad or fresh veggies. It’s the kind of recipe you’ll come back to time and time again—because it’s just that good.

Nutrition Highlights

• High in protein
• Low in net carbs
• Gluten-free
• Rich in calcium and fiber (especially with spinach)

This casserole is not only tasty but supports your low-carb lifestyle without sacrificing flavor.

Share Your Spin

Did you customize this easy low carb chicken casserole? Maybe you added some spice or swapped in a different veggie? Tag your version with #HomeWithSarah—I’d love to see your creations and flavor twists!