So...it's just easy! Just put teriyaki sauce in with the hamburger meat when you cook it, and then drizzle a little on the top when it's cooked. Then put Ketchup (mixed with relish is how they have it), Mustard, and Mayo if you like it. Then put a pineapple slice from the can on it and some fresh white onion, and dig in!!!! SERIOUSLY....SO GOOD! (Note, no Tomato or Lettuce, they write on their sign that they discourage that...and it costs extra to get it!)
I'm NOW on the hunt for a really really great Haupai recipe, so if anyone has one.....let me know!