01 -
Preheat the oven to 350°F (175°C).
02 -
Place chicken breasts on a cutting board. Insert a sharp knife into the thinner side of the breast and carefully cut horizontally, stopping before cutting all the way through. Open the breast to create a pocket that will hold the filling.
03 -
Thoroughly drain the thawed spinach using a cheese cloth or paper towels to remove excess moisture. In a medium bowl, combine the drained spinach, softened cream cheese, Mozzarella, chopped artichoke hearts, minced garlic, oregano, ¾ teaspoon salt, and ¼ teaspoon pepper. Mix until well incorporated.
04 -
Fill each butterflied chicken breast with approximately ⅓ to ½ cup of the spinach artichoke mixture. Season the exterior of the chicken with the remaining ½ teaspoon salt and ¼ teaspoon black pepper.
05 -
Heat oil in a large oven-proof skillet over medium heat. Once hot, add the stuffed chicken breasts in a single layer. Sear for 4-5 minutes on one side until golden brown, then flip.
06 -
Transfer the skillet to the preheated oven and bake for 22-24 minutes, or until the chicken reaches an internal temperature of 165°F (74°C).
07 -
Garnish with freshly chopped parsley if desired and serve immediately.