Begin by preheating your oven to 400°F (200°C) to ensure it’s hot and ready for baking.
In a large casserole dish, combine the long-grain white rice and chicken broth. Use a spoon to stir well, ensuring the rice is evenly distributed in the baking dish.
Lay the chicken breasts directly on top of the rice mixture. Season the chicken generously with salt and freshly ground pepper for optimal flavor.
Seal the casserole dish tightly with aluminum foil to trap the steam, which will help cook the chicken and rice evenly. Bake in the preheated oven for 25 minutes.
While your chicken and rice are baking, prepare the tzatziki sauce. In a medium mixing bowl, combine Greek yogurt, diced cucumber, fresh dill, lemon juice, minced garlic, and a pinch of salt and pepper. Stir the mixture until well combined. Taste and adjust the seasoning if necessary, then set aside.
After 25 minutes, carefully remove the casserole from the oven. Remove the foil and sprinkle the halved cherry tomatoes over the chicken. Return the dish to the oven without the foil and bake for an additional 10-15 minutes, or until the chicken is fully cooked (the internal temperature should reach 165°F or 75°C).
Once cooked, remove the dish from the oven and let it rest for 5 minutes to allow the flavors to settle.
Using a fork, fluff the rice to aerate it. Serve the tender chicken breasts over the fluffy rice, generously drizzled with the tzatziki sauce for a refreshing contrast.
Notes
Serve in individual bowls and garnish with fresh dill and a lemon wedge for extra freshness.