Helyou, we stayed at tsaros last year. They serve breakfasts such as full English, beans on toast, continental breakfasts etc. The daytime menu is very good and reasonably priced with the added bonus of a lovely pool and wonderful apartment owners. They stop serving food around 4pm and do not serve food of a night time but you can order a pizza from the town and eat it at the bar. They also do a barbeque on a Sunday evening at 10 euro's each which I believe is great value for money and very good. Plenty of lovely restaurants/tavernas to be had in the village too.
We are not going to SS this year, giving Thassos a go which looks very nice. Your daughter will love the apartments and SS too.