Right outside of Nantes, there is a small town called St Sebastien sur Loire. It’s really a suburb of Nantes. You can find everything you need there: shops, a mall, restaurants, a movie theater, a go-kart, and a bowling alley.
We went to Les jardins du Maroc, a couscous restaurant there. Service was good, food was good. Price a bit high for a lunch. The place is pretty big and nicely decorated.
You can get there by bus (27) from Pirmil. Stop: Curie.
Here are some pictures: