01 -
Heat your grill to high heat, around 450 degrees Fahrenheit, for direct cooking.
02 -
Place a cast iron skillet or plancha directly over the grill flames.
03 -
Add the thinly sliced ribeye to the hot skillet and chop it up as it cooks, breaking it into finely cut pieces. Continue cooking until there's no more red in the meat and it's all browned through.
04 -
Add the cubed white onions to the cooked beef. Season everything with kosher salt, black pepper, and garlic powder. Let cook for 2 to 3 minutes until the onions become translucent.
05 -
Shape the meat mixture on the skillet into a portion that will fit on your sandwich bun.
06 -
Top the meat with pizza sauce, spreading it evenly.
07 -
Layer the sliced mozzarella cheese and pepperoni slices on top of the pizza sauce.
08 -
Leave the meat and toppings on the grill until the cheese is completely melted and gooey.
09 -
Place the sliced bun over the pile of meat and toppings.
10 -
Using a spatula, carefully lift the entire cheesesteak and transfer it into the bun. Set it down on a serving platter.
11 -
Repeat the entire process for the remaining three cheesesteaks.
12 -
For extra flavor, wrap each cheesesteak in foil and let it sit for 1 to 2 minutes. This allows the flavors to meld and keeps everything warm.
13 -
Slice each cheesesteak in half and serve immediately!