As @fistoffury said, definitely hit Morrisseys. You cant make bookings, so if not in at opening in the evening, be prepared to grab a pint and wait, grand if its just you and a missus, but not so with kids. Trumps spot is good for a bite too, expensive, but its a nice walk around there too. Dont miss out on Doughmore Beach walk, just at the back of Trumps. Its wonderful.
White Strands is a nice beach too should ye get the weather.
Moher Farn is the job too, the kids will love it.