Heat the olive oil in a large skillet set over medium high heat. When the oil is hot, use tongs or a wide spatula to transfer each chicken “sandwich” to the pan (touching, as to keep as much of the filling inside as possible). Sear for ~5 minutes per side. Be careful when flipping the chicken, but a little spillage is okay! When both sides are seared, transfer the chicken from the skillet to a baking dish (around 8×8 but anything that will contain all the chicken “sandwiches” in one layer with a little extra room).