I was in Plaza Gardens last month. Starters are soup and salads, for main courses, there is one kind of carved roast meat, two or three other meat dishes such as barbecue chicken leg, lamb curry, etc., a pizza, four or five vegetables, potatoes, rice, and so on. Desserts include ice cream, tarts and cakes, and marshmallows for a chocolate fountain.
Unlimited soft drinks are included. Reservation is advisable.
I haven't been to Café Agrabah so can't comment beyond that I've been told it is primarily Mediterranean/Middle Eastern.