BE HUNGRY!
As a fellow party of 2 person, the amount of food brought to your table as a table of 2 isn't different from that brought to a table of 4 and all though you aren't required to eat everything you might try to, like we did.
We would get the then wontons and mixed greens that was already filling enough but then they brought us vegetables, potatoes au gratin, wings, shrimp and I am sure I am missing stuff but we were completely full up to our mouths by the time we were asked for any kind of meat. We had to tell our guy to wait so we can digest a couple of things before we continued. That in turn left almost no room for dessert, which is the best part.
Pace yourself as a table of 2.
I don't really like sitting with other people like at Biergarten but I wouldn't mind it at 'Ohana.