吉野家

TEA TIME:
The chicken rice + green tea = HK$15 (It costed HK$ 12 in 2004)
The beef rice + green tea + HK$15 ( It costed HK$12 in 2004)

chicken rice(front),beef rice(back)

at Central, Hong Kong Island

P.S.  In 2013, a bowl of assorted vegetable with sliced beef still cost HK$15.