In a bowl, whisk together olive oil, garlic, oregano, lemon zest, lemon juice, salt, and pepper. Add chicken thighs and toss to coat; let marinate 30 minutes (or up to 2 hours).
Spread rice evenly in a 9×13 inch baking dish and pour chicken broth over it; gently stir to combine.
Arrange marinated chicken thighs on top of the rice, then tuck halved tomatoes around them.
Cover dish tightly with foil and bake 25 minutes. Remove foil and bake an additional 15–20 minutes, until chicken is cooked through and rice is tender.
Remove from oven and let rest 5 minutes. Sprinkle parsley over top and serve warm.
Notes
For deeper flavor, marinate chicken up to 2 hours in advance.
Swap in brown rice; increase covered bake time by 10–15 minutes.
Add sliced bell peppers or Kalamata olives with the tomatoes for extra color.
Store leftovers in an airtight container for up to 3 days; reheat gently.
Nutrition
Serving Size:1 serving (1 chicken thigh + 1 cup rice)