In a bowl, toss the cubed chicken with lemon zest, lemon juice, garlic powder, oregano, salt, and pepper. Let sit for 10 minutes.
Cook the Chicken:
Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add the marinated chicken and cook for 5-7 minutes until golden brown and cooked through. Remove from the skillet and set aside.
Cook the Orzo:
In the same skillet, add the orzo and toast for 1 minute. Pour in the chicken broth and bring to a simmer. Cook for 8-10 minutes, stirring occasionally, until the orzo is tender and the liquid is mostly absorbed.
Prepare the Feta Sauce:
In a small bowl, whisk together feta cheese, Greek yogurt, fresh dill, and 1 tablespoon of olive oil until smooth and creamy.
Combine Everything:
Stir the cherry tomatoes and spinach into the orzo, letting them soften slightly. Return the chicken to the skillet and toss to combine.
Serve:
Drizzle the creamy feta sauce over the dish and garnish with extra dill or feta.