They have a children's menu.
If you're asking about a "kid-friendly" atmosphere I have no idea what that would entail. It's a casual restaurant, but it's not like a character meal or anything that caters specifically to children. If you'd take your kids to a casual chain restaurant at home, you shouldn't have problems taking them here.
I think some assume that because the restaurants are on Disney property they'll play up the "child-friendly" aspect by making the room or the food more attractive to families as opposed to other types of guests, but I don't think this one does. Don't think you'd be yelled at or anything for bringing children.