You can expect a night at Casta Diva to follow a pretty standard schedule. Step one: walk in with a big group and a bunch of wine you just bought from the shop next door. Step two: take over half of the restaurant and make it your personal dining room for the night. Step three: order a pasta that ends in “i.” Step four: run out of wine midway through dinner and make at least one trip back to the wine store. Step five: repeat once a month, forever.