- Set a slice of the pork flat on a work surface and cover with plastic wrap. Use a kitchen hammer to pound the pork into a very thin cutlet. Pound the other slices of pork in this fashion. Season the pork with salt and pepper.
- Preheat the oven to 375˚F. Line a baking sheet with parchment paper. Spread the flour on a wide plate. Coat each piece of pork with flour.
- Heat the oil in a wide skillet set over medium-high. Add the pork and richly brown, about 2 minutes on each side. Set pork on the baking sheet.
- Top each piece of pork with some of the marinara sauce and grated cheese. Set in the oven and heat the pork 6 to 8 minutes, until the sauce is hot and cheese is melted. Stuff 2 pieces of pork in each bun and serve.
Instead of mozzarella, use another type of Italian-style cheese, such as Asiago or provolone. For a richer taste, coat the cut side of each bun with mayonnaise. For a fresh taste, also include some leaves of lettuce in each bun.