I did something wrong as despite the instructions being followed, it felt (and does appear like) i went a bit overkill on the beef vs rice patty size. Felt like I could have used more than just 2 tbsp of yakiniku sauce. Maybe a bit more on top after?
Used home made potato gnocchi and added some shiitake mushrooms in. Turned out pretty good. Since the numbers were skewed due to scaling, eyeballed some of the liquid ingredients.
I used in oil tuna, definitely needs to be drained and needs an additional slice of cheese. Definitely agree that 1" thick bread is a must as it soaks in to the bread.