Time to treat your mate or partner to a meal. Pay for your own meal and let the other person eat the other (cheaper) meal for free. Then they might treat you back and you'll score yourself another free meal.
Or if you're super hungry, feed yourself 2 meals and be grateful you only have to pay for 1. Not recommended if you're on a diet though.
Monday to Wednesday, before 2pm. Highland Park only (where the cinema used to be). Doesn't seem to have an expiry date.
Thanks!