Step 1

Preheat oven to 425 degrees F.

Step 2

Brush chicken with 1 tablespoon oil and sprinkle with lemon zest and 1/4 teaspoon each salt and pepper. Place in a baking dish. Bake until an instant-read thermometer inserted in the thickest part registers 165 degrees F, 25 to 30 minutes.

Step 3

Meanwhile, bring a quart of water to a boil in a medium saucepan over high heat. Add orzo and cook for 8 minutes. Add spinach and cook for 1 minute more. Drain and rinse with cold water. Drain well and transfer to a large bowl. Add cucumber, tomato, onion, feta and olives. Stir to combine.

Step 4

Whisk the remaining 2 tablespoons oil, lemon juice, garlic, oregano and the remaining 1/4 teaspoon each salt and pepper in a small bowl. Stir all but 1 tablespoon of the dressing into the orzo mixture. Drizzle the remaining dressing over the chicken and serve with the salad.