Kid-friendly eatery for Sunday brunch/lunch?
Kobe, as always, has made two good suggestions.
There are many, many places that are kid-friendly, so it would be helpful to know what neighborhood you want to eat in. That said, here are some other options:
Penelope - http://www.penelopenyc.com
Trattoria Trecolori - http://www.trattoriatrecolori.com
Otto - http://www.ottopizzeria.com
Junior's - http://www.juniorscheesecake.com/juni...
Ellen's Stardust Diner - http://www.ellensstardustdiner
The Boathouse in Central Park - http://www.thecentralparkboathouse.co...
Depending on what time you go, believe it or not, Balthazar in SoHo is a great option for toddlers. We've taken our two year old there for breakfast and lunch recently, and I remain impressed with how well the wait staff deals with children. They appear to have an unlimited supply of high chairs, offer crayons and paper, and, while they don't have a children's menu per say, there are lots of great options, particularly on the breakfast menu, for kids.
Cercle Rouge in Tribeca. i live nearby and go often. on weekends, they have this magician stuff going on and baloons - it's for kids (they have cartoons too) - but the adults get into it even more!
the brunch is good, i'm partial to the scotch egg - not for vegetarians: soft boiled egg wrapped in sausage and covered in breadcrumbs - then deep fried. mmmmm..... served over tomatoes and some other healthy stuff
Landmarc is, i think, fairly kid-friendly as well - i've seen an odd stroller parked outside - but for me the appeal is mostly wine so i've never been for brunch or lunch...