Let’s dive into the cooking process, which is as rewarding as the final product itself.

1. Preheat your oven to 375°F (190°C) and lightly grease a baking dish with olive oil.
2. Place the chicken breasts on a cutting board and carefully slice them horizontally to create a pocket, being careful not to cut all the way through.
3. In a small bowl, mix the spinach, feta cheese, minced garlic, oregano, salt, and pepper. Stir until well combined.
4. Fill each chicken breast pocket with the spinach and feta mixture, pressing the filling firmly inside.
5. Secure the openings with toothpicks to keep the filling inside during cooking.
6. Heat olive oil in a skillet over medium heat. Sear the chicken breasts for about 3-4 minutes on each side until golden brown.
7. Transfer the seared chicken to the prepared baking dish. Drizzle with lemon juice and chicken broth.
8. Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and the juices run clear.
9. Remove toothpicks before serving and garnish with fresh parsley if desired.

One of my personal tips is to let the chicken rest for a few minutes after baking. This allows the juices to redistribute, ensuring every bite is moist and flavorful.