I think it sounds horribly pompous for servers* to use "I have ..." when discussing options (usually wine, but sometimes food, too):

"What beers are on draught?"

"I have a cheeky doublebock, a hoppy IPA, a smooth white beer ...."

* the actual owner of the joint is excused

Also --

Is it a west coast North American thing, or do servers elsewhere ask "How's it tasting?" when checking on diners?