Asuka

Sydney, CBD(city)

This place is amazing. They don't take bookings during lunchtime, don't need to. People queue up to eat here and others phone ahead for takeaway. Great noodles and  Chicken katsudon. They could get away with charging a few dollars more considering the location (takeaway is even cheaper!). Highly recommended. 

Recommend this restaurant to people who are studying Japanese since the welcoming staff speak both English and Japanese and will take your order in either. Friendly staff and great food make for an even better night.