Pasta turned out to be Spanish food (5)
I believe the answer is:
tapas
'to be spanish food' is the definition.
(I've seen this before)
'pasta turned' is the wordplay.
'turned' indicates anagramming the letters.
'pasta' anagrammed gives 'TAPAS'.
'out' acts as a link.
(Other definitions for tapas that I've seen before include "sort of bar in Benidorm?" , "taste of Spain?" , "Spanish appetiser" , "Small Spanish dishes" , "The Spanish scoff" .)