You can live as cheaply as you want in Hanioti or you can spalsh out and have up-market too.
The Garden restaurant (on same road as travel agent) is good for a treat. We ate at the Zytheon just opposite "sunshine cocktail bar" several times and took menu of the day. Its a German style restaurant with loads of beers to try. It starts with an O with a line through it, but I am realiably informed by the owner that its pronounced "Z" . Do give this a try. Then there's Amanda and Dimirtios at the Old Tavern just along same road as Pella beach hotel. She is English, married to a Greek and they are a lovely couple. You can have a snack, or a flambe steak cooked at your table. They have loads of folks returning to them each year. Then there's the Gyros take away restaurants which you can eat cheaply in. There are Chinese, Indian, Italian restaurants too, plenty of choice. Kassandra Rooftop restaurant gets a great name although I have not been there myself. And for a great value Meze meal, try Erodios, near Angelo & Pegasus hotels.