A meal prepared in advance with the intention of it being eaten at a later time and/or place. Unlike leftovers, which typically consist of an unfinished meal, set-asides is food specifically prepared for a meal to be consumed later.
Mel: Are those leftovers you’re having today?

Joe: Nah, these here are set-asides I cooked up last night.
by Ollie from La Mirada May 16, 2008
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