Preheat your grill to medium-high heat. If you don't have a grill, you can also use a cast-iron skillet on the stovetop.
Brush both sides of the provolone cheese wheel with olive oil to prevent sticking.
Sprinkle the dried oregano and crushed red pepper flakes evenly over the top of the cheese. If using, sprinkle the minced garlic over the cheese as well.
Place the cheese directly on the grill grates or in a cast-iron skillet.
Cook for about 2-3 minutes on each side, or until the cheese is golden brown and slightly melted. Be careful not to overcook, as the cheese can melt too much and fall apart.
Remove the provoleta from the grill or skillet and transfer to a serving plate.
Garnish with freshly chopped parsley.
Enjoy your meal!