01 -
Heat oven to 175°C. Spread some butter, about 2 tablespoons, on the rolls then toast until golden and crunchy.
02 -
Lay the provolone slices over cooked beef and veggies. Turn off heat and cover to let the cheese soften nicely.
03 -
Put the cooked veggies back with the beef in the pan. Stir in salt, pepper, garlic powder, and Worcestershire sauce. Let them cook together for a minute or two so the flavors soak in.
04 -
Turn the heat up to medium-high and add the rest of the butter and oil. Cook the beef strips until they get that nice brown and are done.
05 -
Throw the onions and bell pepper slices into the pan. Cook them for about 3 minutes till they’re a little soft. Take them out.
06 -
Heat 1 tablespoon butter and 1 tablespoon oil in your skillet over medium heat. Cook mushrooms for a couple minutes till they soften. Remove them from the pan.
07 -
Cut the mushrooms, bell pepper, and onion into thin strips.
08 -
Stuff each toasted roll with the warm beef, veggies, and melted cheese mix. Best served right away while it’s hot.