a lot of others I don't know/remember but will add in the future
Juicy and Tasty : really nice, a lot of choices of tastes, not expensive. Sell wraps, burgers, and kebab (gyros). 100% vegan.
Vegebowl : really good at meat imitation (they fake chicken, pork, beef but also duck!). 100% vegetarian, 90% vegan. Portions can be a little small for the price compared to regular price for asiatic food, but guys it is vegan meat. This is also not the place to look for fresh vegetables and food can be a little greasy. Bad choice for picky vegan eaters but awesome to surprise meat-eaters afraid of veganism.
Le VG : liked it! The menu changes regularly. Sells wraps and burgers. Best vegan cookies in Paris according to a cookie-holic friend of mine. 100% vegan.
Season Square : sells burgers with home made fries. 100% vegan. Loved the desserts. Burgers changes regularly too (loved especially the avocado one but the truth is I loved every burger I tried). The soup is amazing. They also sell "bowls" with various, healthy, fresh and seasonable foods.