A restaurant which I have always enjoyed for it's mixture of foods is Siam Indigo. Placed in the heart of Phuket Town adjacent to the 'On On' on Phang Nga road.
It is not only a restaurant but linked to it is a place to go shopping for those bits and pieces that you miss from Europe, style and quality clothing - the Hip and Chic fashion market. It is on the first Sunday of every month from 3pm to 8pm - the next one is on July the 4th.
I would go for the drinks and watch as my wife wonders around picking up those 'I must have' bits - make a visit.