Creating the Easy Dump-and-Bake Chicken Tzatziki Rice Dinner is a breeze. Follow these steps to prepare this amazing dish:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Baking Dish: In a large baking dish, spread the uncooked rice evenly across the bottom.
3. Add the Liquid: Pour the chicken broth or water over the rice, ensuring it is evenly covered.
4. Season the Chicken: In a bowl, season the chicken breasts with garlic powder, onion powder, oregano, paprika, salt, and pepper.
5. Arrange the Chicken: Lay the seasoned chicken breasts on top of the rice in the baking dish.
6. Add Tzatziki Sauce: Spoon the tzatziki sauce over the chicken, spreading it evenly.
7. Add Vegetables: Scatter the halved cherry tomatoes and diced cucumber around the chicken.
8. Cover and Bake: Cover the baking dish tightly with aluminum foil and bake for 45 minutes.
9. Check for Doneness: After 45 minutes, remove the foil and check that the chicken is cooked through and the rice is tender. If necessary, bake for an additional 5-10 minutes.
10. Garnish and Serve: Once cooked, remove from the oven and let it sit for a few minutes. Garnish with fresh parsley or dill before serving.

These simple steps will guide you in creating a delightful dinner that is both easy to prepare and incredibly delicious.