Holmes, 28, and husband Tom Cruise, 45, held the party inside the Carlyle Hotel's Bemelmans Bar, which is decorated with artwork from the Madeline series of children's books, written by the late author Ludwig Bemelmans.
From 11 a.m. to 1 p.m. about 10 kids and 15 adults enjoyed mini burgers, chicken fingers, mac and cheese, french fries, cookies and strawberries, and danced to kids' songs played on the piano by Tina deVaron, according to a source.
"Suri and her friends had a Madeline tea," the observer added, and she was "running around and dancing and playing with friends."
The next day, Holmes finished in about five and a half hours, then stepped out with her husband for his Lions for Lambs film premiere.
