Wish we could, but those inter-island flights are so expensive!
Rocky, just wait until you eat out! You'll have more luck finding a cocobolo sopranino than you will finding even a junk food meal for under twelve bucks per person. Bring a full bank account of disposable cash.
As suggested by others, the cheapest place you'll dine. Lol. And those are the cheaper North Shore prices!
We were getting tired of spending $20+ bucks each for three tacos and a Coke, so we asked around. "Gotta go to pizza on Kuhio (one block off Waikiki). Meal for five bucks. Popular place," they insisted. I forget the name of the place, but three people said it was tops. I even found it on Yelp, five stars!
We were ravenous from trying to get by on one or two tiny meals a day, just like all the tourists. You can tell the tourists on Oahu because, other than the 30 seconds of oohs and aahs when the bus lets them out to see Blow Hole or other such natural wonder, the rest of the time they look like they're shellshocked from finding out the place no longer looks like it did in Elvis's Blue Hawaii movie. Anyhow, we skulked back to Kuhio, knowing the area well from our many foam-box, plastic-forked $15 meals of six pieces of flank steak over an ice cream scoop of white rice, while standing in the back of the most expensive supermarket on earth, Kuhio Food Pantry (this, by the way, is the most popular meal place on Waikiki...ask anyone who has stayed at the beach for more than a long weekend and they will have bought a $6 bag of Lays potato chips--"Hey, grab a $9 six pack of Mountain Dew and there's tomorrow's breakfast, hun!"--at the old Food Pantry).
Anyhow, The famous, five-star pizza joint? A homemade plywood pizza wagon set up in a dirt parking lot between two low-rise, faded, flamingo-pink apartment buildings...whenever the guy decides to work (you never know if he'll show up or not...that's the mealtime entertainment), he fires up a flatiron and makes pizzas with dough from his apartment kitchen. He had people lined up before he got there, delirious for cheap eats, and all for a standard NY cheese slice plus medium Coke for five bucks.
If the six grubby lawn chairs by his propane tanks are occupied by other vitamin-deficient tourists (no salads), then sit on the curb by the bus stop, which is what most everyone did (tip:never wear white shorts or else, rather than group-dining on the curb, you'll have to eat your slice standing against an exhaust-sooted palm tree, alone).
Cheapest "meal" we had on all of Oahu! Lol. The same slice plus drink at Whole Foods chain supermarket in Kailua (you'll go there too, small island) cost us twice as much...lol. So, what the hell, i can play along with a joke: I gave him high marks on Yelp, too. Lol I.deducted one star because the least he could do was wash off the curb for us with that green garden hose that he uses to re-moisten the pizza dough. Come on, customers first, brah!