Sundried Tomato, Spinach, and Cheese Stuffed Chicken – Taste

Marinade the chicken breasts in the dressing for a few hours
With a large sharp knife, carefully cut the chicken breasts like hot dog buns. Don't cut all the way through.
Open the chicken breasts up where you cut them and layer on the remaining ingredients. It's okay if you can't fit all of it in, you can just leave some out. Just squish in as much as you can. Stick a couple of toothpicks in near the opening to keep it all together.
Heat up a pan and sear the meat on both sides. You can lower the heat and continue cooking the meat on the stove until it's done or, transfer to the oven to finish cooking at about 375ºF. Also you could also just completely cook it in the oven if you don't feel like searing it. Just make sure you cook it until the center reaches 165ºF on a thermometer.