Located in a little lane way next to the station is a little japanese food hub. Here you will find a branch of the Japanese restaurant sushi-ya, which also has a store in Chatswood. Unlike the other store however, the artarmon branch has lots more seating, indoors and outdoors, and a larger menu with more hot food items such as okonomiyaki. The food is delicious and the sushi is fresh. The service is quick and the staff are friendly, many don't have a great command of English but they are very polite and patient.
My favourite was the seared salmon sashimi, some about a blow torch that makes food tasted that extra bit special...