Over a lasagne ingredient (5)

I believe the answer is:

pasta

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'lasagne ingredient' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe there's an association between them I don't understand?

'over a' is the wordplay.
'over' becomes 'past' (I've seen this in another clue).
'past'+'a'='PASTA'

Can you help me to learn more?

(Other definitions for pasta that I've seen before include "Italian foodstuff" , "Spaghetti, ziti, fusilli, for example" , "Tapas (anag)" , "Rigatoni, tortellini etc" , "Fare from Italy" .)

I've seen this clue in the Sydney Morning Herald.

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