We have just returned from Zakynthos (Laganas), and having ate at Mr Dallas three out of seven nights could only recommned the restuarant (in fact we did to Gav at the 'Must' Sports Bar). The food was perfect, the service faultless, and all this for a very reasonable price. The Tzatziki, Baked Feta, and Baked Haloumi were lovely as starters; with regard to mains I would say any of the traditional dishes were well worth a try (especially the Beef Stifado and the Village Lamb); if you're up for a dessert you should try the Baklava as this is awesome.  Once again if you're in Laganas make sure you try Mr Dallas (It's found on what I belive is the Akropolis Road, which is on the otherside of the cross roads from the Kalamaki Road).