To find affordable place to eat in Perth, one of the most expensive city in the world is indeed a challenge. The average price for a take away coffee in Perth is $3.89, the highest in the nation when one considers that even Sydney, the biggest city in Australia has cheaper coffee to offer.
Therefor it is not surprising that one particular restaurant performs very well because they offer below average price for their customer. It is the Taka's Kitchen at the corner of Barrack and Wellington Street. It is a Japanese restaurants that cater to the lower end market in the city. Students and office workers make a beeline to this place during lunch time thanks to its affordable price.
Food wise it is OK but nothing to shout about. The plus sign is that they offer free flow of green tea, another selling point as drinks are also not cheap in Perth. So if you are looking for cheap food to just pump up your energy for the day, then this is the place to visit.