I'm taking my niece and my goddaugther out for a late lunch before the latter leaves to go back to LA. They want to go to Chinatown but neither are adventurous eaters (i.e., nothing too spicy). I need a place that typically jaded tweens (jaded not in the culinary sense but in the sense that they're monosyllabic around adults and find adult things boring; they'd love to spend the day on facebook) might like. Dim sum would be great but are places serving that late? Maybe a place with fish in a tank would get their interest. Or some other intriguing draw?