A friend of mine is travelling through Paris on a Sunday, and we're planning on getting lunch or brunch. I've had a look at a few of the other relevant Chowhounds threads (http://chowhound.chow.com/topics/785093, http://chowhound.chow.com/topics/699601, http://chowhound.chow.com/topics/699601), but Sunday tends to be a bit of an anomaly in Paris and none of the threads covered that.
He'll be leaving via Gare de Lyon, so we thought we'd try to eat near there. He'll have luggage, but if a place is sufficiently good we could probably widen our radius for it.
He doesn't want to spend too much (says that 40 euros would be too much). I'm guessing that doesn't include wine (which I'm guessing we won't be ordering, so shouldn't be a factor).