Unfortunately, I can't recall the name; I really wish I could.  The
husband/owner/chef was an American from New Orleans, LA and had gotten
a local write-up as he had been one of the locals who had cooked for
visiting George Bush Sr & Jacques Chirac during a political conference.

The place is a large house that sits on the hillside by the switchback.
When you're heading from Grand Case, this switchback will be most of
the way toward Orleans and you'll be going downhill ... IIRC, you first
make a sharp left (at the top), traverse the hill, then a sharp right
(at the bottom) to continue south.  As you come down the hill in this
fashion, the house will be on the uphill side to your left - - its
probably easier to spot going northbound (uphill), where the house will
be on the right.

If they're still around, I'd say it should be fine with your little
one, as a lot of the fun for us was that it was a family affair
restaurant - - we were eating relatively early (Americans), so our
waiters-in-training were the (at the time) 7 & 9 year old sons of the
owner/chef.  After dinner, we had coffee with his wife, who in a "small
world" coincidence was from a small midwestern town that I had been
travelling to business at the time.  Her husband/owner/chef was an
American from New Orleans, LA.

-hh