Merry's pub in Dungarvan have cask on - two taps. They also have a few other craft beers in bottles, and the food there is good too. Another pub for food is The Moorings which has Dungarvan Brewing Co bottles. Around Dungarvan you'll find a good few of the pubs have Dungarvan beers, full list is available on their website, or you could check the Beoir app if you have a smartphone.
In Ardmore, I believe the Cliff House Hotel has a selection of craft beers, and maybe a tap as well (I've not been there meself)