In Paris V.G. is so far the best place I have found for when you crave a fast food style healthy vegan or vegetarian burger (you can choose style). they make it all fresh right in front of you and the burgers are all delicious. V.G is located in the 9e arrondissement and fairly close to Gare du Nord and Montmartre. The prices are reasonable, EUR 9.90 in January 2015 which includes burger, frites and a soft-drink such as – Orangina.