Begin by dicing one medium onion and mincing two garlic cloves. Zest and juice one lemon, making sure to catch the seeds. Pat the 4 boneless, skinless chicken thighs dry with paper towels, and season both sides generously with salt, pepper, dried oregano, and thyme.
Heat 2 tablespoons of olive oil in your skillet over medium-high heat. Once hot, add the chicken thighs and sear them for about 3-4 minutes on each side until golden brown. You don’t need to cook them through at this stage—just develop a nice crust. Remove the chicken from the pan and set aside.
Reduce heat to medium. In the same skillet, add the diced onion and sauté for about 3 minutes until translucent. Stir in the minced garlic and cook for another 30 seconds until fragrant.
Add 1 cup of long-grain rice to the skillet, stirring to coat the grains in the onion-garlic mixture and olive oil. Pour in 2 cups of chicken broth, then add the lemon juice and lemon zest. Stir everything together to combine.
Nestle the browned chicken thighs back into the rice mixture. Lower the heat to a gentle simmer, cover the skillet with a lid, and let it cook for 20-25 minutes. The rice will absorb the flavorful broth, and the chicken will cook through to tender perfection.
Once the rice is tender and the chicken is cooked, remove from heat. Let it rest covered for 5 minutes to allow any remaining liquid to absorb. Sprinkle freshly chopped parsley over the top before serving to add a fresh burst of flavor and color.