Mediterranean Chicken with Orzo Salad

Ingredients

• 2 teaspoons chopped fresh oregano
• 2 cups thinly sliced baby spinach
• ½ teaspoon ground pepper, divided
• 2 tablespoons lemon juice
• ¼ cup chopped red onion
• ¼ cup crumbled feta cheese
• ¾ cup whole-wheat orzo
• ½ teaspoon salt, divided
• 1 cup chopped cucumber
• 1 clove garlic, grated
• 2 skinless, boneless chicken breasts , halved
• 1 teaspoon lemon zest
• 3 tablespoons extra-virgin olive oil, divided
• 2 tablespoons chopped Kalamata olives
• 1 cup chopped tomato