01 - Heat olive oil in a large skillet over medium-high heat until shimmering.
02 - Add sliced chicken to the hot skillet, season with salt and black pepper. Cook for 5–6 minutes, stirring occasionally, until golden brown and cooked through. Transfer chicken to a plate and set aside.
03 - In the same skillet, add sliced onions and bell peppers. Sauté for 6–8 minutes until softened and slightly caramelized, stirring occasionally.
04 - Stir in minced garlic, Worcestershire sauce, smoked paprika, and red pepper flakes. Cook for 1 minute until fragrant, being careful not to burn the garlic.
05 - Return chicken to the skillet, mixing thoroughly with the seasoned vegetables. Cook for 2 minutes to heat through and allow flavors to meld.
06 - Arrange provolone cheese slices evenly over the chicken and vegetable mixture. Cover the skillet and let cheese melt for about 2 minutes until fully melted and bubbling.
07 - Serve hot directly from the skillet or spoon into hoagie rolls for a classic cheesesteak sandwich experience.