Restaurant near the science Museum?

[Pinkstuffs]

Heading there later this week with DDs who are 4 and 7. We would have taken a picnic but the weather looks changeable. Where is a good place for late lunch or dinner nearby? DS is fussy but happy with plate of chips, rest of us are not!

There is a picnic area inside the museum which can be crowded but is doable

Otherwise the Creperie nearby is nice