These open-face Philly-style chicken sandwiches are a delicious twist on the classic Philly cheesesteak. Tender chicken breast is seasoned with a blend of spices and cooked until juicy and flavorful. The sandwiches are topped with sautéed onions, bell peppers, and melted provolone cheese, adding a burst of flavor and gooey goodness. Serve these sandwiches on toasted hoagie rolls for a satisfying and hearty meal.