Which preposition to use with pillau

in Occurrences 1%

David said: "I promise thee not to give battle till I have eaten rice pillau in the green and red tent," and he urged his horse forward and appeared suddenly from the west in front of the tent.

under Occurrences 1%

It is to me as if I were still eating rice pillau under the red and green tent.

Which preposition to use with  pillau