There are better restaurants in Plaja del Carmen, but we had a good time in Mandarina's Cafe.
It is an Italian Restaurant and my daughter was intrigued by their announce on Pizza with champagne. To start with, their couvert with biscuits and a garlic butter was simple and great.
We had 1 pizza and 2 pastas and all dishes were good. Service ok. Open and nice environment, although mosquitos were crazy there. Advisable not to forget spray against them.