Ehh I just left Paris after visiting for a few days. Not that I bought fruits and veggies there, but I found the restaurant scene to be very average. The bistros are all indistinguishable from each other, pretty expensive (probably 25 euros for an entree and a drink), and very mediocre quality. I know you were talking about grocery store produce but a CA area farmers market is probably higher quality than an analogous one there too.