1. Preheat oven to 350F and lightly toast hoagie roll. (A toaster oven is ideal for this, if you have one).
2. Sprinkle both cheeses in the bottom of the hoagie roll, holding back about 1 tablespoonful for the top of the roll.
3. Place the meatballs down the centre of the roll and ladle hot marinara sauce on top.
4. Sprinkle tablespoonful of reserved shredded cheese and the parmesan cheese over top. Rub some dried oregano and basil between your fingers and sprinkle over top.
5. Put meatball sub in an oven-safe dish and return to oven for a couple of minutes to heat through and melt the cheeses. Cool for a minute before tucking in .
6. Place a large napkin around your neck, take a step back and take a big bite. Tastes good, yes?