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, and cook for 5–6 minutes until golden brown and cooked through. Transfer to a plate and reserve.
03 - Add onions and bell peppers to the same skillet. Cook for 6–8 minutes until softened and lightly caramelized, stirring occasionally.
04 - Stir in garlic, Worcestershire sauce, smoked paprika, and red pepper flakes. Cook for 1 minute until fragrant, stirring constantly.
05 - Return chicken to the skillet and toss with vegetables. Cook for 2 minutes until everything is heated through.
06 - Arrange provolone slices evenly over the mixture. Cover the skillet and cook for 2 minutes until cheese is fully melted.
07 - Serve hot directly from the skillet or spoon into hoagie rolls for sandwiches.