Preheat the oven to 380F.

Place the chicken breasts in the oven on a baking tray lined with a silicone mat or foil. Cook for 20 minutes.

While the chicken cooks, prepare the topping. Warm some olive oil in a large skillet (you could use some of the oil from the sun dried tomatoes if you like). Add the chopped prosciutto, baby spinach, chopped sun-dried tomatoes, onion powder, paprika, and cream cheese. Cook over a low heat until a thick sauce has formed and season with salt and pepper.

Remove the chicken from the oven, and cut a cross in the center of each breast. Load them up with the topping and return them to the oven for another 10 minutes. Check that the chicken is thoroughly cooked before serving.