"Your favorite sandwich just got better...."
extra-virgin olive oil, divided
sirloin steak
Kosher salt
Freshly ground black pepper
medium yellow onion, thinly sliced
red bell pepper, thinly sliced
green bell pepper, thinly sliced
cloves garlic, minced
Worcestershire sauce
medium flour tortillas
shredded mozzarella
shredded provolone