Paul and I cooked a foreign dish (5)
I believe the answer is:
pilau
'a foreign dish' is the definition.
(I've seen this before)
'paul and i cooked' is the wordplay.
'and' is a charade indicator (letters next to each other).
'cooked' indicates an anagram (letters cooked into a new form).
'paul' after 'i' is 'ipaul'.
'ipaul' anagrammed gives 'PILAU'.
(Other definitions for pilau that I've seen before include "Eastern food" , "Indian dish of rice boiled with meat, vegetables, spices etc" , "Foreign dish" , "Rice cooked in well-seasoned broth" , "Indian rice recipe" .)