01 -
Preheat your oven to 400°F and lightly grease a 9x13-inch baking dish with a drizzle of olive oil. This Dump-and-Bake Chicken Tzatziki Casserole | Easy Dinner comes together fast, so having your dish ready before you start saves valuable time.
02 -
In a large bowl, toss 2 lbs boneless, skinless chicken thigh chunks with 3 tbsp olive oil, 4 cloves minced garlic, 1 tsp dried oregano, 1/2 tsp smoked paprika, and salt and pepper to taste. Coat every piece thoroughly so the flavors penetrate the meat during baking.
03 -
In a separate bowl, stir together 1 1/2 cups full-fat Greek yogurt, 1 cup grated and squeezed-dry cucumber, 2 tbsp fresh chopped dill, 1 tbsp fresh lemon juice, and 1 tsp lemon zest until smooth and well combined. Squeezing the cucumber dry is essential to prevent a watery casserole.
04 -
Spread the seasoned chicken evenly across the bottom of your prepared baking dish. Scatter 1/2 cup sliced red onion and 1 medium zucchini sliced into 1/4-inch rounds over the chicken, then top with 1 cup halved cherry tomatoes and 1/2 cup halved Kalamata olives for a vibrant Mediterranean veggie layer.
05 -
Pour the creamy tzatziki base evenly over the chicken and vegetables, using a spatula to spread it into an even layer that covers everything. This is what makes this Dump-and-Bake Chicken Tzatziki Casserole | Easy Dinner so uniquely delicious — the yogurt sauce bakes right into the dish.
06 -
Sprinkle 3/4 cup crumbled feta cheese generously and evenly over the top of the tzatziki layer. The feta will turn lightly golden in the oven, creating a savory, slightly crispy finish that elevates the entire casserole with rich, briny flavor in every bite.
07 -
Bake uncovered at 400°F for 40–45 minutes, or until the chicken is cooked through to an internal temperature of 165°F and the feta is golden at the edges. For the best Dump-and-Bake Chicken Tzatziki Casserole | Easy Dinner results, check doneness with a meat thermometer rather than guessing.
08 -
Remove from the oven and let the casserole rest for 5 minutes before serving. Finish with 2 tbsp freshly chopped parsley scattered over the top for a bright, herby garnish. Serve directly from the dish alongside warm pita bread, rice, or a simple green salad for a complete meal.