Prepare the rice according to package instructions, using a 2:1 water-to-rice ratio. Set aside and keep warm.
Pat the pork chops dry with paper towels and season both sides with salt and pepper.
Set up a breading station with flour in one shallow bowl, beaten eggs in another, and panko breadcrumbs in a third bowl.
Dredge each pork chop in the flour, dip into the beaten eggs, and then coat with panko breadcrumbs, pressing gently to adhere.
Heat vegetable oil in a deep skillet over medium heat until it reaches about 350°F (175°C).
Carefully add the breaded pork chops to the pan in batches if necessary, and cook for about 4-5 minutes on each side until golden brown and cooked through.
Remove the cooked pork chops from the oil and place them on a plate lined with paper towels to drain excess oil.
Scoop a generous portion of rice into each bowl, slice the katsu into strips, and place on top of the rice.
Garnish with shredded cabbage and drizzle with tonkatsu sauce. Serve extra tonkatsu sauce on the side.