In Pennsylvania, a way to serve lasagne, say (5)

I believe the answer is:

pasta

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'lasagne say' is the definition.
(lasagne is a kind of pasta)

'in pennsylvania a way' is the wordplay.
'in' is an insertion indicator.
'pennsylvania' becomes 'PA'.
'way' becomes 'st' (abbreviation for street).
'a'+'st'='ast'
'pa' enclosing 'ast' is 'PASTA'.

'to serve' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for pasta that I've seen before include "Eg, spaghetti" , "Tagliatelle, for example" , "eg Tortellini" , "Eg, lasagne" , "Macaroni, for example" .)

I've seen this clue in The Times.

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