One meal every OTHER day, apparently. It's obvious: If you're still gaining weight, you're still running an energy surplus. Hey, fuel economy is great! You'll only have to eat every other day! Why would you complain? Food costs money!
Sure, if you don't mind depriving your body of all the essential nutriments it needs to function properly and lower your immune system to something practicaly inexistent. And quite plainly, go hungry as hell; because just because someone's metabolism burns fat more than the next person's it doesn't mean the body doesn't actually need the "fuel" for other processes (as Hecubus explained very well)
Tchan made a good point too - you actually gain more if you don't eat regularly, because the body hoards all food it gets. So it's much healthier to eat 3 times a day, smaller portions than one big one.
It would actually be cool, being able to eat once a week and never gain weight, and actually remain perfectly healthy. Once a month perhaps?
It's what anorexics try...but we know how they end up.
No the real viable solution for most (I say most because cases differ) is exercise to counter the slower metabolism...since the body burns fat too slowly, you gotta give it a helping hand. It sucks, but it's the truth...