Prepare the Baking Dish
Grease a 9x13-inch baking dish with olive oil or spray it with nonstick cooking spray.
Marinate the Chicken
Add the diced chicken to the baking dish. Pour in 2 tablespoons of lemon juice and 2 tablespoons of olive oil, and sprinkle the fresh parsley, oregano, thyme, smoked paprika, seasoned salt, cumin, onion powder, garlic powder, black pepper, turmeric, and cayenne pepper (if using). Mix well to coat the chicken evenly. Let it marinate at room temperature for 30 minutes while you preheat the oven.
Add Rice, Zucchini, and Broth
After marinating, add 1 cup of uncooked long-grain white rice, 1½ cups of grated zucchini, and 2 cups of chicken broth to the baking dish. Stir everything together to combine.
Bake the Dish
Cover the baking dish tightly with aluminum foil to trap the steam. Bake in a preheated oven at 375°F (190°C) for 40 minutes.
Check and Finish Cooking
After 40 minutes, check if the rice is tender and most of the liquid is absorbed. If not, return to the oven for an additional 5-10 minutes.
Fluff and Serve
Once the rice is fully cooked, fluff it with a fork. Taste and adjust seasoning if necessary. Serve warm, topped with tzatziki sauce, fresh herbs, and a squeeze of lemon juice. For a complete meal, pair it with pita bread on the side.