From past experience it's a full time job trying to eat rich meals for both lunch and dinner in Paris - even with hours of walking in between. My strategy is to have great lunch meals then lighter dinner fare (this also helps reduce costs). Can I get some suggestions on which places you recommend for high quality food snacks at night? Our lunches will include Nomico, Metropolitan, Spring, JCD. Where do we go for great flavors but in small portions (and without breaking the bank again since we will be full already from lunch). Similarly are any of these bistros better for dinner or service is the same for lunch?
My current thoughts are to try the wine bars linked to larger bistros. Doesn't Septime, Spring and Vivant have wine bars that serve similar/same quality food but you are not expected to eat full multi-course meals?
Crepes could be another option as well.