Mix salt into the rice and divide it into 4 portions. Wrap and push each portion firmly into the mold. Then, fry both sides in a frying pan.
Coat the beef with katakuriko. Divide into portions approximately the same size as the portions of rice. When the portions have cooked and hardened, add teriyaki sauce and reduce the sauce.
Put the lettuce and beef on a portion of rice, drizzle on the mayonnaise, and top it off with 1 more portion of rice.
Story Behind this Recipe
If you like the rice burgers from a certain famous burger chain, you'll like this! It's rather similar!
A mold used to make English muffins works perfectly. The rice will dry out if you cook over low heat, so cook over high to harden the surface. Use beef scraps or off-cuts. Cooking the scraps all at once will prevent them from falling out of the burger and they are softer and easier to eat compared to usual yakiniku meat.