Slice bread in half lengthwise. Open and garnish 4 bottom slices with arugula, apple slices and cheese. Heat oil in a nonstick pan over high heat. Quickly cook cutlets, 1 – 2 minutes per side, depending on thickness. Add pork to breads. Sprinkle with paprika; season with salt and pepper. Cover with top bread slices. Heat a large grill pan on medium-high heat. Arrange sandwiches in pan. Brown each side, flattening them with a spatula. Serve immediately.