01 - Place ribeye steak in the freezer for 30 minutes to firm, making slicing easier. Using a sharp knife, thinly slice the steak against the grain.
02 - Heat olive oil in a large skillet over medium-high heat. Add the sliced onions and optional bell peppers. Sauté for 4 to 5 minutes until vegetables are softened and lightly browned. Transfer vegetables to a plate and set aside.
03 - In the same skillet, add sliced ribeye. Season with salt and black pepper. Cook, stirring frequently, for 2 to 3 minutes until steak is just cooked through.
04 - Return cooked onions and bell peppers to the skillet with the steak. Mix thoroughly and cook for an additional minute to heat through.
05 - Arrange steak mixture into four portions in the skillet. Top each portion with two slices of provolone cheese. Cover the skillet and let cheese melt for one minute.
06 - Using a sharp knife, slice each hoagie roll lengthwise, keeping one side intact. Toast the rolls lightly if preferred.
07 - Using a spatula, transfer a portion of the cheesy steak mixture to each roll. Serve immediately while hot.