PHILLY CHEESESTEAK FILLING
MAKE THE GARLIC BUTTER
In a small bowl, mix butter with parsley, garlic, parmesan, salt, black pepper, and oregano.
MAKE THE CHEESESTEAK FILLING
To a pan over medium heat, add the olive oil and onions. Saute for 6 to 8 minutes or until soft and tender, adding a splash of water 3 to 4 times as it cooks to help caramelize them. Make sure to continuously stir around so
it cooks evenly.
Once the onions are 3/4 of the way caramelized, add the bell peppers and minced garlic. Cover to let it steam so the bell peppers soften.
When the peppers are soft and the onions are caramelized, transfer to a plate and in the same pan, add and melt down the butter.
Add the steak to the pan over high heat. Season with paprika, chili powder, onion powder, garlic powder, salt, black pepper, brown sugar, and Worcestershire sauce.
Cook for about 4 to 5 minutes or until seared and fully cooked through.
Take off the heat. Return the peppers and onions to the pan. Toss all together and take off the heat.
ASSEMBLE AND BAKE
Preheat oven to 350°F.
Cut the loaf in half to open up into two long halves.
Spread butter mixture over each piece generously.
Add the cheesesteak filling on top and then cover with cheese, adding as little or as much as you'd like.
Place on a baking tray and pop in the oven to bake for 15 minutes.
After 15 minutes, turn the oven to broil for a few minutes, about 3 to 6 minutes. Watch very closely as it can easily burn under broil very fast.
Once the top becomes golden brown and the cheese is bubbly, take out of the oven.
Chop into small pieces and serve warm!