01 -
Turn on your oven to 375°F (190°C) and let it warm up.
02 -
Toss the ribeye slices in half the pepper and salt, then rub in the oil so everything's coated.
03 -
Crank up a cast iron skillet on high until it’s super hot. Drop in the steak, let it cook for a couple of minutes without touching so it gets that seared look.
04 -
Splash Worcestershire over the steak, give it a quick stir, then take it off the heat and set it aside.
05 -
Using the same pan, throw in the butter, sliced bell peppers, mushrooms, and onion. Sprinkle with the other half of the salt and pepper. Stir it around for 3-4 minutes until the veggies soften and get a bit golden.
06 -
Take the bread halves and smear mayo evenly across the cut sides.
07 -
Lay down some provolone slices on each bread piece. Add the steak and those delicious veggies, then cover the top with the rest of the cheese.
08 -
Put the loaded bread onto a baking sheet. Slide it into the warmed oven, middle rack, and bake for about 15 minutes until the cheese bubbles and the edges turn golden.