The aroma wafting through my kitchen as I pulled this creamy Dump-and-Bake Chicken Tzatziki Casserole from the oven was nothing short of magical. Just moments before, the chaos of a bustling weekday had me questioning my dinner options—not today! This dish is a lifesaver, combining tentacled pieces of tender chicken, juicy cherry tomatoes, and a medley of fresh vegetables, all brought together by the tangy tzatziki sauce. Perfect for those evenings when you crave a satisfying homemade meal but dread the cleanup, this easy, one-dish wonder not only saves time but also delights everyone at the table. With Mediterranean flavors inviting you to dig in, aren’t you curious how a simple bake can turn into such a comforting feast?

Why You’ll Love This Casserole
Quick and Easy: This Dump-and-Bake Chicken Tzatziki Casserole requires minimal prep time—just toss and bake! Perfect for those hectic weeknights.
Creamy Delight: The tzatziki sauce lends a rich and tangy flavor that elevates this dish from everyday to extraordinary, creating a crave-worthy meal.
Family-Friendly: Served warm, this one-dish wonder appeals to all ages, ensuring a satisfying dinner for everyone. For more easy family meals, check out my Cheesy Broccoli Chicken casserole!
Versatile Ingredients: Feel free to customize with your favorite vegetables or grains. Mix in some quinoa for heartiness or add spinach for a nutrition boost.
Minimal Cleanup: With everything baked in one pan, you can spend more time enjoying your meal and less time washing dishes. It’s a win-win!
Dump-and-Bake Chicken Tzatziki Casserole Ingredients
For the Casserole
• Boneless, Skinless Chicken Breasts – Cut into bite-sized pieces for even cooking and tender results.
• Tzatziki Sauce – Adds a creamy, zesty layer; Greek yogurt and cucumber can be swapped if necessary.
• Cherry Tomatoes – Burst with sweetness and juiciness; grape tomatoes or diced regular tomatoes can work too.
• Zucchini – Brings moisture and texture; substitute with bell peppers or eggplant if you prefer.
• Red Onion – Introduces a sharpness that balances the flavors; yellow onion or scallions are great alternatives.
For the Toppings
• Feta Cheese – Offers a salty, tangy depth; use goat cheese or leave it out for a dairy-free option.
• Olive Oil – Greasing the pan and sautéing ingredients slightly; avocado oil is a suitable substitute.
Seasonings
• Dried Oregano – Imparts Mediterranean flavors; feel free to use fresh oregano in a larger quantity.
• Salt and Black Pepper – Essential for enhancing the overall taste; adjust according to your preference.
Experience the comforting flavors of this Dump-and-Bake Chicken Tzatziki Casserole—your family will surely be asking for seconds!
Step‑by‑Step Instructions for Dump-and-Bake Chicken Tzatziki Casserole
Step 1: Preheat the Oven
Begin by preheating your oven to 400°F (200°C) to ensure it’s hot and ready for baking. While the oven heats, take a 9×13-inch baking dish and lightly grease it with olive oil. This will help prevent the chicken and vegetables from sticking, allowing for an easy cleanup later.
Step 2: Prepare the Chicken and Vegetables
In the greased baking dish, place the bite-sized pieces of boneless, skinless chicken breasts. Next, add the halved cherry tomatoes, chopped zucchini, and sliced red onion. The colorful mix will not only look appetizing but also provide a variety of textures and flavors in your Dump-and-Bake Chicken Tzatziki Casserole.
Step 3: Season the Mixture
Drizzle a bit of olive oil over the chicken and vegetable mixture, ensuring they are coated evenly. Sprinkle dried oregano, salt, and black pepper over the top. With clean hands or a spoon, toss everything together gently, ensuring that the chicken and vegetables are well seasoned and mixed, creating a flavor-packed base for your casserole.
Step 4: Add the Tzatziki Sauce
Now it’s time to add the star of the show! Evenly spoon the tzatziki sauce over the mixture, allowing it to sit on top. Using a spatula, gently stir everything to coat the chicken and veggies with the creamy, tangy sauce. This step adds a delectable layer of flavor that will bring the casserole together beautifully.
Step 5: Bake the Casserole
Place the baking dish in the preheated oven and bake uncovered for 30-35 minutes. You’ll know it’s done when the chicken pieces are fully cooked through (reaching an internal temperature of 165°F) and the vegetables are tender. As it bakes, the delightful aroma will fill your kitchen, making it hard to wait!
Step 6: Add the Finishing Touches
Once baked, carefully remove the casserole from the oven. Sprinkle crumbled feta cheese over the top while it’s still hot, letting it melt slightly. This adds a lovely salty tang to the dish. Now, it’s ready to serve straight from the baking dish, bringing warmth and comfort to your family table.

Expert Tips for Dump-and-Bake Chicken Tzatziki Casserole
-
Be Generous with Tzatziki: Use enough tzatziki sauce to fully coat the ingredients; it enhances flavor and creaminess in your casserole.
-
Ensure Even Cooking: Cut chicken into uniform pieces; this promotes even cooking and prevents any pieces from being undercooked.
-
Check for Doneness: Always verify that the chicken reaches an internal temperature of 165°F, ensuring food safety and perfect texture in your Dump-and-Bake Chicken Tzatziki Casserole.
-
Customize Your Veggies: Don’t hesitate to swap out vegetables as per your preference; just remember that different textures might alter cooking times slightly.
-
Enjoy Freshly Baked: For best flavor, serve the casserole hot from the oven. While it’s tempting to save leftovers for later, the fresh taste is simply unbeatable!
Make Ahead Options
These Dump-and-Bake Chicken Tzatziki Casserole is perfect for meal prep enthusiasts looking to save time on busy nights! You can chop the chicken and vegetables (cherry tomatoes, zucchini, and red onion) up to 24 hours in advance, storing them in an airtight container in the refrigerator to maintain freshness. Additionally, you can prepare the tzatziki sauce ahead of time and refrigerate it, ensuring the flavors meld beautifully. When you’re ready to bake, simply combine everything in the greased baking dish, add the seasonings, and follow the original instructions for baking. This way, you’ll enjoy a quick, homemade dinner that still tastes like it just came out of the oven!
Dump-and-Bake Chicken Tzatziki Casserole Variations
Now, let your creativity shine by giving this dish a personal touch, enhancing the flavors and textures to suit your family’s preferences!
-
More Veggies: Add bell peppers or spinach for extra nutrients while keeping that colorful appeal.
-
Heartier Base: Mix in cooked quinoa or rice; they’ll absorb the flavors and provide a satisfying texture twist.
-
Spicy Kick: Sprinkle some red pepper flakes or a dash of cayenne pepper for a flavorful heat that balances the creamy tzatziki.
-
Different Cheeses: Swap feta for goat cheese or mozzarella; each offers a unique twist and depth to this delightful casserole.
-
Herb Infusion: Use fresh herbs like basil or cilantro instead of oregano for a refreshing flavor profile. Herbs can brighten up the dish tremendously.
-
Dairy-Free Option: Substitute tzatziki with a homemade cashew cream or a dairy-free yogurt to cater to lactose-intolerant family members without sacrificing creaminess.
-
Mediterranean Twist: Throw in kalamata olives or artichoke hearts for an authentic Mediterranean flair. They can elevate the flavor to new heights!
-
Satisfying Crunch: Top with breadcrumbs or panko mixed with olive oil before baking for a crispy, golden crust—perfect for added texture.
Remember, this dish is all about making it your own! For inspiration, if you’re seeking another delicious bake, try my Chicken Alfredo Casserole next!
How to Store and Freeze Dump-and-Bake Chicken Tzatziki Casserole
Fridge: Store leftovers in a covered container for up to 3 days. Gently reheat in the oven or microwave to keep the chicken moist and flavorful.
Freezer: For longer storage, freeze the casserole for up to 3 months. Wrap it tightly in plastic wrap before placing it in an airtight container to prevent freezer burn.
Reheating: Thaw overnight in the refrigerator before reheating. Use the oven at 350°F (175°C) for about 25 minutes for even warmth, ensuring the chicken remains tender.
Best Enjoyed Fresh: To savor the creamy layer of tzatziki sauce, consume within 24 hours for optimal texture and flavor.
What to Serve with Dump-and-Bake Chicken Tzatziki Casserole
This dish is not just a meal; it’s an experience waiting to be paired with delightful sides that enhance its Mediterranean charm.
-
Fluffy White Rice: Perfectly cooked rice absorbs the creamy tzatziki sauce, balancing the flavors with its mildness. It’s a comforting staple that everyone loves.
-
Crispy Greek Salad: Fresh cucumbers, tomatoes, olives, and feta offer a crunchy contrast and bright flavors, perfectly complementing the casserole’s creaminess.
-
Toasted Pita Triangles: Lightly toasted pita sprinkled with za’atar creates a delightful side that adds texture and is perfect for scooping up the casserole.
-
Garlic Roasted Potatoes: Their crispy edges and buttery insides pair beautifully, mirroring the richness of the dish while adding a satisfying crunch.
-
Grilled Asparagus: Tender asparagus spears provide a fresh, earthy taste that harmonizes with the savory flavors of the casserole and brings a splash of green to your plate.
-
Lemonade or Sparkling Water: A refreshing drink to cleanse the palate, enhancing the meal’s Mediterranean essence with a vibrant, zesty twist.

Dump-and-Bake Chicken Tzatziki Casserole Recipe FAQs
How do I choose the right chicken for the casserole?
Absolutely! For the best results, opt for fresh boneless, skinless chicken breasts. Look for pieces that are firm and have a pink hue, avoiding any that appear discolored or have an unpleasant smell. If you’re short on time, consider using pre-cooked or rotisserie chicken for an even quicker option.
How should I store leftovers from the casserole?
Very! Store leftovers in a covered container in the fridge for up to 3 days. When reheating, use the oven at 350°F (175°C) for about 15-20 minutes to preserve the chicken’s moisture—microwave if you’re in a rush, but watch for dryness!
Can I freeze the casserole for later?
Absolutely! To freeze, wrap the cooled casserole tightly in plastic wrap, then store it in an airtight container. It should keep well for up to 3 months. To reheat, thaw it overnight in the fridge and bake at 350°F (175°C) for about 25 minutes—this will ensure even warmth and a satisfying texture!
What if my chicken isn’t fully cooked after baking?
Absolutely! If your chicken isn’t fully cooked after the recommended baking time, simply return the casserole to the oven for an additional 5-10 minutes, checking the internal temperature every few minutes. Chicken should reach 165°F for safe consumption. Covering the dish with foil can help keep it moist during this re-baking period.
Can this casserole be made dairy-free?
Very! To make your Dump-and-Bake Chicken Tzatziki Casserole dairy-free, simply omit the feta cheese and use a dairy-free tzatziki or a mix of Greek yogurt and cucumber. Look for non-dairy alternatives at your local store or make your own; it’s easier than you think!
What should I do if I don’t have tzatziki sauce?
No worries! If tzatziki isn’t available, you can create a simple substitute with Greek yogurt mixed with chopped cucumbers, minced garlic, a squeeze of lemon juice, and a bit of salt. This will replicate that creamy and zesty flavor beautifully!

Easy Dump-and-Bake Chicken Tzatziki Casserole for Busy Nights
Ingredients
Equipment
Method
- Preheat your oven to 400°F (200°C) and lightly grease a 9x13-inch baking dish with olive oil.
- In the greased baking dish, place the chicken, cherry tomatoes, zucchini, and red onion.
- Drizzle olive oil over the mixture and season with oregano, salt, and black pepper. Toss to combine.
- Spoon the tzatziki sauce over the mixture and gently stir to coat.
- Bake uncovered for 30-35 minutes until the chicken is fully cooked and vegetables are tender.
- Remove from oven and sprinkle feta cheese over the top while it's still hot.

Leave a Reply