One of the most conveniently available and yummy "quick lunch" options we saw in Paris was a baguette sandwich. The little stand outside of the bakery near our hotel started serving them mid morning, using the bread from the bakery! We saw students and office workers holding baguette sandwiches and chomping them down around lunch time on the streets and in public places.
And what usually accompanied a delicious baguette sandwich? A Coke of course! At least that what we saw. Sounded wonderful to me!