When most folks think of Vietnamese food, their minds likely conjure up steaming bowls of nourishing pho or sweet and savory meats grilled with lemongrass. We’re always up for the surly table service at Pho 75, but our absolute favorite Vietnamese dish of all time has to be grilled beef wrapped in grape leaves. Last weekend, we were all about satisfying obscure food cravings, so we made an expedition to Eden Center — one of…