Hawaii Bowl and Diamond Head Classic, can't beat that sports holiday Broncos...I remember hoping this scenario panned out when SDSU was part of the basketball field last season. Having just visited with the lady who is a foodie for the game vs the Bows last month, my grub recommendations:
Good on the run food, hot dogs with Hawaiian twist. Lots of island fruit relishes and badazz sauces.
Japanese udon noodle soup, tempuras, masubis. Damn good and cheap.
Good stop on a day trip through the center of the island to the North Shore. Garlic shrimp and steamed.
Doesn't get the same recognition as Matsumoto's, but Waiola is solid and more under the radar IMO. Closer to Waikiki too if you're staying there, north of the canal.
These are hit and miss with people but I'd have to guess this is among the more famous Hawaiian pastries.
Aloha Stadium has some nice vendors in the end zones as well. I'm sure the locals would probably be more discriminating but when at a game, with the horrors of Qualcomm food ever present in my head, I'll take it any day of the week.