The Sultan
Award-winning indian restaurant housed in an old church and famous for amazing islamic decor as well as the fab vegetarian selections. it now has a cafe and deli downstairs, which is very comfortable and does mediterranean and middle eastern as well as indian food. the indian sweets are particularly good.
Lancaster is also home to the regular chain eateries: Litten tree, Wetherspoons The Sir Richard Owen is generally better than the Green Ayre, Bella Italia, McDonalds.
There is a good supermarket with local food, Booths this small regional chain recently came 2nd in a poll of the world's best stores, to the south of the city on the A6 at Hala.