I like the special order LHR-YYZ food I have had over the years, different each time, but always remembered as 'yes, that was pretty good' (and the food I had purchased at Boots for the flight remained untouched) - a vegetarian curry with a decent amount of kick to it, and a pizza or cheese pastie as a 'snack' later in the flight.

Had a pretty good red pepper pizza on Qantas last month and a short while before, a pretty decent mango ice cream bar. The snack bar items (balsamic biscotti, some almonds, cookies etc.) were decent; the main meals weren't great tho.