ready meal
US /ˈred.i ˌmiːl/
UK /ˈred.i ˌmiːl/

1.
a pre-prepared meal, usually sold in a supermarket, that only requires heating before eating
:
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I bought a ready meal for dinner tonight.
•
Many people rely on ready meals for convenience.
a pre-prepared meal, usually sold in a supermarket, that only requires heating before eating