Katsudon Chiyomatsu Gojin is a Japanese rice bowl restaurant in Osaka that serves katsudon, a pork cutlet topped with egg over rice. The pork cutlet comes in regular, deluxe, and premium sizes with different meat thicknesses, and is eaten with ponzu sauce, mustard, and salt. Orders are placed by QR code, each counter seat has a USB Type-C charger, and the kitchen preparation can be watched. The rice portion is large, so even a small order can be left unfinished.