Heat a large cast iron frying and place the ground beef in the pan to cook.
Remove from the pan and set aside.
Heat the same cast iron frying pan and place the sliced red bell pepper, garlic and onion slices in the pan.
Sprinkle these veggies with the sugar and seasonings and allow a bit of a char to form on the veggies.
When this is achieved drizzle the veggies with olive oil.
Add the cup of sauce to the veggies and toss.
Let the mixture simmer on a gentle heat while preparing the rolls.
Add the cooked ground beef to the peppers and onions and toss.
Add the balsamic vinegar to the sauce and toss. Taste for seasonings.
Brush each roll with olive oil.
Sprinkle each side of the roll with garlic powder, black pepper and dried oregano.
Grill the rolls.
Place shredded mozzarella on each side of the roll and fill with the ground beef mixture.
Finish the sandwich off with grated Parmesan or Romano cheese, dash of red pepper flakes, and capers.
