Family is at the heart of life in Cambodia, so it is hardly surprising to find family-oriented restaurants throughout the country. Most local restaurants will welcome children with open arms, particularly foreign kiddies, as staff don't get a chance to see them up close that often. Sometimes the welcome will be too much, with pinches and pats coming left, right and centre, but such is the way in Cambodia.              :
Ironically, it is often the upmarket Western restaurants where the reception may be terse if the children are playing up, as some stiff expats seem to have forgotten that they started out life that small. That said, there are plenty of excellent, child-friendly cafes and restaurants in Phnom Penh and Siem Reap serving dishes from home. There are rarely children's menus in any places, but with food so affordable, there is little room to quibble.
Most of the snacks children are accustomed to back home are available in Cambodia...and so much more. It is a great country for fruit and the sweetness of mangosteens or the weirdness of dragon fruit or rambutan is a sure way to get them interested. There is also an incredible selection of vegetarian creations for parents who prefer their children to avoid meat.
There is sometimes monosodium glutamate (MSG) in local Cambo¬dian food. If your child has problems digesting it or you prefer to avoid it, it is better to stick to restaurants with an English-language menu that are used to dealing with tourists.