How to make it
Mix ground beef, Otafuku gluten-free sushi sauce, Japanese mayo, bread crumbs and eggs in a bowl until evenly mixed.
Heat oil in a frying pan on high heat.
Cook on medium heat for 5 minutes, then flip.
Cook on the other side for an additional 5 minutes, seasoning with salt if preferred.
Place burger, cheese, onion, and sauce on the bun and serve!