Stepping into my kitchen, the sweet, smoky aroma of barbecue fills the room, instantly transporting me to summer nights spent grilling with friends. Today, I’m excited to share my Low Carb BBQ Chicken Zucchini Casserole—a hearty dish that redefines comfort food while keeping it healthy and low-carb! Not only is this recipe a fantastic option for those following a Keto lifestyle, but it also makes busy weeknight dinners a breeze, taking less than an hour from prep to plate. With tender zucchini layers and shredded chicken smothered in rich barbecue sauce, it’s a delightful twist on a classic casserole that your family will love. Ready to indulge in a guilt-free dinner that doesn’t skimp on flavor? Let’s dive in!

Why You’ll Love This Casserole?
Quick and Easy: This recipe takes less than an hour from start to finish, making it perfect for busy weeknights.
Guilt-Free Indulgence: Enjoy smoky BBQ flavor without the carbs, thanks to nutrient-rich zucchini and our special low-carb barbecue sauce.
Crowd-Pleaser: It’s hearty enough to satisfy the whole family, while also being a great option for guests who follow a Keto or healthy lifestyle.
Versatile Ingredients: You can easily switch up the cheese or vegetables for a unique twist—try adding gouda or even some jalapeños if you like it spicy!
Meal Prep-Friendly: Cook once and enjoy leftovers throughout the week; it doesn’t just taste great fresh, but also heats up beautifully. Consider pairing it with a crisp green salad for a well-rounded meal.
Low Carb BBQ Chicken Zucchini Ingredients
For the Casserole
- Medium Zucchinis – Adds bulk and freshness; low in carbohydrates.
Substitution: Yellow squash can be used for variety. - Cooked Chicken (2 cups, shredded) – The primary protein source providing heartiness.
Note: Rotisserie chicken can save time. - Low-Carb Barbecue Sauce (1 cup) – Provides sweetness and flavor.
Substitution: Use your favorite sugar-free BBQ sauce. - Shredded Cheddar Cheese (1 cup) – Offers creaminess and a cheesy topping.
Substitution: Mozzarella can be used for a milder flavor. - Cream Cheese (1/2 cup) – Adds richness and creaminess to the dish.
Note: Effective in binding the ingredients together. - Garlic Powder (1 tsp) – Enhances flavor and aroma.
- Onion Powder (1 tsp) – Further develops the savory profile.
- Smoked Paprika (1/2 tsp) – Introduces a subtle smokiness.
- Salt and Pepper (to taste) – Essential for seasoning.
Step‑by‑Step Instructions for Low Carb BBQ Chicken Zucchini Casserole
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C) to create the perfect environment for baking your Low Carb BBQ Chicken Zucchini Casserole. This temperature ensures a bubbly, golden cheese topping while allowing the zucchini to cook through evenly.
Step 2: Prepare the Zucchini
Slice the medium zucchinis into thin rounds, approximately 1/4 inch thick. A sharp knife or mandoline will help achieve uniform slices, which is crucial for even cooking. Place the zucchini rounds in a colander to drain excess moisture; this prevents a soggy casserole.
Step 3: Mix the Chicken Filling
In a large mixing bowl, combine the shredded cooked chicken, low-carb barbecue sauce, cream cheese, garlic powder, onion powder, smoked paprika, salt, and pepper. Blend these ingredients until fully combined, creating a deliciously creamy mixture that will envelop the zucchini layers with flavor.
Step 4: Layer the Zucchini
Arrange half of the zucchini slices on the bottom of a greased baking dish, overlapping them slightly for coverage. This layer provides a fresh, low-carb base for your casserole. Press down gently to ensure the zucchini lies flat, creating a solid foundation for the flavorful chicken layer.
Step 5: Add the Chicken Mixture
Evenly spread the chicken mixture over the first layer of zucchini. Use a spatula to make sure all the zucchini is covered, allowing the sauce to soak into the zucchini, enhancing flavor and moisture. This step is key to achieving a mouthwatering balance of flavors in every bite.
Step 6: Top with Zucchini
Cover the chicken layer with the remaining zucchini slices, artfully layering them to create an attractive presentation. This second zucchini layer not only adds volume but also contributes more nutrients while giving the casserole its unique character.
Step 7: Cheese It Up
Sprinkle the shredded cheddar cheese generously over the top of the final zucchini layer. The cheese will melt and create a rich, gooey topping that beautifully contrasts with the fresh zucchini and savory chicken beneath it.
Step 8: Bake the Casserole
Cover the baking dish tightly with aluminum foil to keep the moisture in. Bake in the preheated oven for 25 minutes, then remove the foil and continue baking for an additional 15-20 minutes. You’ll know it’s done when the cheese is bubbly and golden brown, creating an irresistible crust.
Step 9: Let it Rest
Once the casserole is removed from the oven, let it sit for about 10 minutes before slicing and serving. This resting period allows the layers to set, making your Low Carb BBQ Chicken Zucchini Casserole easier to cut and serve, while enhancing the flavors further.

Make Ahead Options
These Low Carb BBQ Chicken Zucchini Casseroles are a lifesaver for meal prep enthusiasts! You can slice the zucchinis and layer them in the baking dish up to 24 hours in advance, just cover the dish with plastic wrap to keep them fresh. Additionally, the chicken filling can be mixed and stored in the fridge for up to 3 days; simply assemble the casserole when you’re ready to bake. To maintain the quality, avoid cutting the zucchinis until the day of assembly to prevent them from browning. When you’re ready to serve, layer everything as instructed and bake — this way, you’ll have a comforting, delicious dinner with minimal effort!
What to Serve with Low Carb BBQ Chicken Zucchini Casserole
Transform your delightful casserole into a full meal that your family will rave about!
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Fresh Green Salad: A crisp salad with mixed greens, cherry tomatoes, and a tangy vinaigrette adds brightness to your meal, balancing the rich flavors of the casserole.
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Steamed Broccoli: Lightly steamed broccoli brings a satisfying crunch and is a great source of vitamins, complementing the dish’s textures beautifully.
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Garlic Bread: Serve warm, garlic-flavored bread sticks on the side for a comforting touch that pairs well with the casserole’s smoky flavor.
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Coleslaw: A zesty coleslaw made with cabbage and carrots adds a refreshing crunch and contrasts the richness of the cheese and chicken.
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Cauliflower Rice: For a low-carb alternative to traditional rice, serve fluffy cauliflower rice. It absorbs the BBQ sauce perfectly and rounds out the meal.
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Sparkling Water Infusion: Elevate your dining experience with a refreshing drink. Infuse sparkling water with lemon or cucumber for a light, fizzy refreshment.
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Berry Parfait: Top off your meal with a light dessert, like a berry parfait with whipped cream or yogurt, to cleanse the palate after the savory casserole.
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Sparkling Lemonade: A sweet and tangy sparkling lemonade adds an exciting fizz that can brighten the dinner table and enhance the meal’s enjoyment.
Expert Tips for Low Carb BBQ Chicken Zucchini Casserole
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Slice Evenly: Ensure your zucchini slices are uniform to promote even cooking throughout the casserole, avoiding mushy textures.
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Drain Excess Moisture: After slicing, allow zucchini rounds to sit in a colander to drain. This prevents a watery casserole, preserving flavor.
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Rest Before Serving: Let the casserole sit for 10 minutes after baking. This resting time helps the layers set, making it easier to slice and serve.
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Taste BBQ Sauce First: Different BBQ sauces have varying salt levels; taste yours before adding extra salt to avoid overwhelming the dish.
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Experiment with Veggies: Feel free to substitute zucchini with other low-carb vegetables like eggplant or cauliflower for a fun twist on the classic.
Low Carb BBQ Chicken Zucchini Variations
Customize your Low Carb BBQ Chicken Zucchini Casserole to suit your taste buds and dietary needs! Each variation adds a unique twist that can enhance your culinary adventure.
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Spicy Kick: Add sliced jalapeños or red pepper flakes to the chicken mixture for an extra zing. This spicy addition gives your casserole a delightful warmth that’s sure to please heat lovers.
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Different Cheeses: Experiment with cheeses like gouda or pepper jack to introduce new flavors. Each cheese choice transforms the casserole into a whole new experience, allowing you to find the perfect cheesy combination.
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Vegetable Swap: Replace zucchini with eggplant or cauliflower for a different texture. These alternatives present their own unique flavors while keeping the dish low in carbs.
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Herb Infusion: Include fresh herbs like basil or cilantro in the chicken filling for a fresh burst of flavor. This addition elevates the taste profile, making each bite even more enchanting.
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Nutty Crunch: Top with crushed almonds or pecans for an unexpected crunch. This contrast in texture adds a delightful surprise, balancing the creaminess of the cheese and richness of the chicken.
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BBQ Sauce Variety: Use different types of low-carb BBQ sauce to experiment with flavors—smoky, tangy, or fruity. Your choice of sauce will be the star that melds this entire dish beautifully together.
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Creamy Twist: Swap cream cheese for Greek yogurt or sour cream for a lighter, tangy flavor. This change not only lightens the dish but also adds a refreshing twist that complements the BBQ flavor beautifully.
For other delicious chicken recipes, consider trying Pepperoncini Chicken Skillet or Slow Cooker Chicken and Gravy to enhance your meal planning!
Storage Tips for Low Carb BBQ Chicken Zucchini Casserole
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Room Temperature: Keep the casserole at room temperature for no longer than 2 hours after baking to ensure food safety.
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Fridge: Store leftovers in an airtight container in the refrigerator for up to 4 days. This maintains freshness and flavor while allowing for easy reheating.
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Freezer: The casserole can be frozen for up to 3 months. Wrap it tightly in plastic wrap or foil before placing in a freezer-safe container to prevent freezer burn.
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Reheating: To reheat your Low Carb BBQ Chicken Zucchini Casserole, bake at 350°F (175°C) for 20-25 minutes, or until warmed through and the cheese is bubbly.

Low Carb BBQ Chicken Zucchini Casserole Recipe FAQs
What should I look for when selecting zucchinis?
When choosing zucchinis, opt for medium-sized ones with smooth, firm skin and no dark spots or soft areas. They should feel heavy for their size. If you find zucchinis that are slightly larger, they may have more seeds and tougher skin—so stick to the smaller, more tender varieties for the best flavor in your casserole.
How should I store leftovers of the Low Carb BBQ Chicken Zucchini Casserole?
Store any leftovers in an airtight container in the refrigerator, where they can last for up to 4 days. This preserves their flavor and makes for a quick meal option. Just remember to allow the casserole to cool before sealing it, as trapping heat can create moisture inside the container.
Can I freeze this casserole, and if so, how?
Absolutely! You can freeze your Low Carb BBQ Chicken Zucchini Casserole for up to 3 months. Simply let the casserole cool completely, then wrap it tightly in plastic wrap or foil, and place it in a freezer-safe container. When you’re ready to enjoy it, thaw it in the refrigerator overnight, then reheat in the oven at 350°F (175°C) for 20-25 minutes until warm and bubbly.
What if my casserole seems watery after baking?
If you find your casserole is watery, it’s often due to excess moisture from the zucchini. To avoid this, be sure to slice the zucchinis evenly and drain them for a while in a colander before assembling. You can also press down on the slices gently to help expel some moisture. This will help keep your casserole hearty and flavorful.
Is this casserole suitable for people with dietary restrictions?
Yes, this Low Carb BBQ Chicken Zucchini Casserole is a great option for those following a Keto diet, but it can also accommodate other dietary needs! Just make sure to use a sugar-free BBQ sauce to cater to those with sugar sensitivities. If you need a dairy-free version, try substituting the cream cheese with a dairy-free cream cheese alternative and using a non-dairy cheese topping. Always check the labels to ensure they align with your dietary preferences!

Low Carb BBQ Chicken Zucchini Casserole You'll Crave!
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C).
- Slice the medium zucchinis into thin rounds, approximately 1/4 inch thick. Place the zucchini rounds in a colander to drain excess moisture.
- In a large mixing bowl, combine the shredded cooked chicken, low-carb barbecue sauce, cream cheese, garlic powder, onion powder, smoked paprika, salt, and pepper. Blend until fully combined.
- Arrange half of the zucchini slices on the bottom of a greased baking dish, overlapping them slightly. Press down gently.
- Evenly spread the chicken mixture over the first layer of zucchini.
- Cover the chicken layer with the remaining zucchini slices.
- Sprinkle the shredded cheddar cheese generously over the top of the final zucchini layer.
- Cover the baking dish tightly with aluminum foil and bake for 25 minutes, then remove the foil and continue baking for an additional 15-20 minutes.
- Let the casserole sit for about 10 minutes before slicing and serving.
