This dump-and-bake Chicken Tzatziki Casserole is an easy one-pan meal full of vibrant Mediterranean flavors and tender chicken. It’s an ideal weeknight dinner that layers rice, chicken, vegetables, and bright toppings like pickled red onions, crumbled feta, lemon wedges, tzatziki, and a garlicky dip for a satisfying, colorful meal.
If you enjoy easy one-pan dinners focused on bold seasoning and minimal fuss, this casserole delivers. The method is straightforward: layer diced chicken and rice, add thinly sliced or grated zucchini and tomatoes, pour in seasoned chicken stock, and bake until the rice is tender and the flavors have melded. Finish with fresh and pickled toppings for contrast and texture.
Why You’ll Love Chicken Tzatziki Casserole
This Greek-inspired casserole hits the balance of wholesome and comforting. It’s easy to customize: swap or add toppings like olives, cucumbers, or avocado, use thighs if you prefer darker meat, and choose your favorite store-bought tzatziki and garlic dip to speed things up. Serve with warmed pita bread for a complete, family-friendly meal.
Key Ingredients
Below are the main ingredients used in this casserole. Refer to the ingredient list further down for exact amounts.
- Chicken – diced boneless skinless chicken breasts work well; thighs are a good alternative.
- Zucchini – grated so it blends into the rice or thinly sliced if you want noticeable pieces.
- Tomatoes – grape or cherry tomatoes, left whole.
- Rice – basmati or long-grain white rice for the texture and flavor in this recipe.
- Chicken stock – provides the liquid and adds flavor for cooking the rice.
- Pickled red onions – quick-pickled in vinegar, sugar, and salt for a tangy topping.
- Lemon – wedges baked in the dish and used fresh when serving.
- Feta – crumbled feta adds a salty, briny finish.
- Seasonings – a homemade Greek seasoning plus smoked paprika, turmeric, seasoning salt, and a pinch of cayenne.
- Sauces – store-bought tzatziki and a garlic dip keep the recipe fast and delicious.
How to Make Chicken Tzatziki Casserole
This recipe uses a dump-and-bake approach for minimal hands-on time. Give yourself about 20 minutes to prep and roughly 50 minutes to bake.
Prep the seasonings
Mix the paprika-cayenne blend and the Greek seasoning ahead of time if possible. Having the spice mixes ready shortens assembly time and makes the process smoother.
Pickle the onions
Combine vinegar, sugar, and salt in a heat-safe bowl and warm briefly until the sugar dissolves. Pour over thinly sliced red onion, press the onion into the liquid, then cover and chill until needed. These are best after a few hours but can be used the same day.
Assemble the casserole
Preheat the oven to 375°F (190°C). Spread diced chicken on the bottom of a 9×13 casserole dish. Sprinkle half the paprika seasoning and one heaping tablespoon of Greek seasoning over the chicken and toss to coat evenly. Layer the uncooked rice in a single, even layer over the chicken, then add the zucchini and tomatoes.
Whisk the remaining paprika mixture and another tablespoon of Greek seasoning into the chicken stock. Pour the seasoned stock over the casserole so the rice is covered. Scatter 1/4 cup of crumbled feta over the top and tuck 6–8 lemon wedges into the dish.
Bake
Cover the casserole tightly with foil and bake at 375°F for 40 minutes. Remove the foil and bake an additional 10–20 minutes, or until the rice is tender and the liquid has been absorbed. Baking times vary by pan and oven, so check the rice at the 40-minute mark and continue baking as needed.
Finish and serve
Fluff the casserole to distribute ingredients evenly. Remove the cooked lemon wedges if you prefer, then taste and season with salt and pepper. Top with additional crumbled feta, pickled red onions, chopped parsley, fresh lemon wedges, tzatziki sauce, and garlic dip. Serve warm with pita bread for scooping.
Modifications and Tips
- Rice options: This recipe is tested with basmati and long-grain white rice. Liquid ratio remains the same, but baking time may vary. Brown rice and instant rice are not tested with this method.
- Zucchini prep: Grated zucchini blends into the rice for a subtle vegetable addition. Thin slices will give visible pieces and more texture.
- Toppings: Add Mediterranean extras like kalamata olives, banana peppers, diced cucumbers, or avocado for more variety.
- Make-ahead: Mix seasonings, dice chicken, and pickle the onions a day ahead to reduce cooking day prep. Using quality store-bought tzatziki and garlic dip saves time and still tastes great.
- Baking notes: Avoid overcooking the rice; if it becomes gummy the texture will suffer. Stir or fluff a few spots near the center to ensure even absorption before finishing.
How to Store
Cool the casserole to room temperature, then cover tightly and refrigerate for up to 4 days. For meal prep, portion into airtight containers for lunches or dinners during the week.
Freezing and Reheating
Leftovers freeze well for up to 3 months. Thaw overnight in the fridge before reheating. Microwaving portions with a splash of chicken broth or lemon juice helps rehydrate the rice. To reheat a full casserole, add a few splashes of liquid, cover tightly with foil, and warm in a 350°F oven until heated through, about 20 minutes depending on portion size.
Ingredients
- 1.5 lbs diced chicken breast
- 1 large zucchini, grated or halved and thinly sliced
- 1/2 yellow onion, diced
- 1 pint grape tomatoes, left whole
- 1.5 cups basmati or long-grain white rice, uncooked
- 1 lemon, halved and sliced into wedges
- 1/4 cup crumbled feta, plus more for topping
- 3 cups chicken stock
- 2 tablespoons Greek seasoning (see notes)
Paprika seasoning mixture
- 2 teaspoons smoked paprika
- 1 teaspoon seasoning salt
- 1/2 teaspoon turmeric
- 1/4–1/2 teaspoon cayenne pepper, to taste
Pickled red onions
- 1 medium red onion, thinly sliced
- 3/4 cup red wine vinegar or apple cider vinegar
- 2 teaspoons sugar
- 2 teaspoons kosher salt
Toppings
- Extra feta
- Toom garlic dip or similar
- Tzatziki sauce
- Chopped parsley
- Pita bread for serving
Instructions
- Preheat oven to 375°F. Mix the paprika seasoning and Greek seasoning, and set aside.
- For pickled onions: warm vinegar, sugar, and salt until the sugar dissolves. Pour over sliced red onion, submerge the onion, cover, and refrigerate.
- Add diced chicken to a 9×13 casserole dish. Sprinkle half the paprika mixture and 1 tablespoon Greek seasoning over the chicken and toss to coat. Spread chicken evenly across the bottom of the pan.
- Spread uncooked rice over the chicken in a single layer. Add zucchini and tomatoes.
- Whisk the remaining paprika mixture and 1 tablespoon Greek seasoning into the chicken stock. Pour the seasoned stock evenly over the casserole. Sprinkle 1/4 cup feta and arrange 6–8 lemon wedges over the top.
- Cover tightly with foil and bake for 40 minutes. Remove foil and bake an additional 10–20 minutes until rice is tender and liquid is absorbed.
- Fluff to distribute ingredients. Taste and adjust salt and pepper. Top with extra feta, pickled red onions, parsley, fresh lemon wedges, tzatziki, and garlic dip. Serve with warmed pita.
Notes
Greek seasoning: 2 tsp dried basil, 2 tsp garlic powder, 2 tsp oregano, 1 tsp dried dill, 1 tsp dried marjoram, 1 tsp dried parsley, 1 tsp dried rosemary, 1 tsp ground black pepper, 1/2 tsp ground thyme, 1/2 tsp salt.
Grated zucchini blends into the rice for a subtle texture, while thin slices provide more bite. Baking time depends on your pan and oven—check the rice to avoid undercooking or overcooking. This method has not been tested with brown rice or instant rice.
Nutrition (approximate)
Serving size: 1 serving | Calories: 428 kcal | Carbohydrates: 44 g | Protein: 12 g | Fat: 25 g | Sodium: 1091 mg