Every "combo" or "set meal" (everything except appetisers/snacks) comes with a drink. Look at the "w/combo meal" column to find out if your desired drink is complimentary or if a surcharge is needed.
Every weekday a different dish is the daily special. For $8.99 you get a drink too. Teriyakipork chop rice tasted decent, had a decent amount of pork and came with a fried egg too