Prepare all of the ingredients. Add enough oil to make ½ inch deep in frying pan and heat to medium-high.
Add red onions and red wine vinegar to mason jar and secure lid.
Combine mayo, ketchup and sweet relish. Cover and place in refrigerator until ready to make sandwiches.
Place a piece of pork between two pieces of cling wrap. Flatten with a mallet or rolling pin until about ¼ inch thick. Repeat with remaining chops. Make a dredging station: 1st plate - 1 cup of flour and paprika. 2nd plate - eggs, salt and garlic powder. 3rd plate - remaining flour. Dredge each piece of pork in the three plates. Place in hot oil for 4 minutes on each side. Remove to a paper towel covered plate.
Build the sandwich - Start with bottom roll, spread with mayo mixture. Place fried pork chop on top then pile with cabbage, carrots, and onion. Sprinkle with mustard seeds and then top roll, spread with mayo mixture.