Restaurant recommendations sought!

Where should Gary and I take our parents?

We never go to fancy places, so we’re quite ignorant in this area.

Limitations: my mother will only eat plain food — roast chicken or grilled fish OK. Nothing, alas, too spicy or ethnic (with the exception of Japanese).

They’re staying in Tribeca, so somewhere there or in Soho or one of the Villages would be good.

Quiet atmosphere desirable so we can talk.

Help!