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Seems like it could be very close to Distinction Without a Difference.
Bob: "That gigantic mega-burrito isn't dinner because it's only one thing. But this pair of normal sized burritos is dinner because it is one burrito that comes with another burrito."
Alice: "But they're both the exact same caloric value of burrito."
Bob: "Now, Alice, you know how I feel about logic..."
no, ex:you cannot call something meal when there no rice (even noodle)
Doubling Distinction Without a Difference, or perhaps Insistent Terminology, depending on the context. It's unlikely we'd have a super specific trope for what to call "meals".
a food must come with another food otherwise the character not call it dinner