Butterfly your chicken breasts by slicing them horizontally through the middle and stopping just before it cuts them in half. Sprinkle the outside with salt, pepper, and smoked paprika.
In a small bowl, mix together the cream cheese, parmesan cheese, feta cheese, baby spinach, and sun dried tomatoes.
Stuff the chicken breasts with the filling, and use toothpicks to hold everything in place. Don't worry if some of the filling falls out.
Place a skillet over medium heat. Add the butter and once hot, and the chicken and brown all sides of it. Cook until it reaches an internal temperature of 165.
