伙食费 board wages

board expenses（用掉的“伙食费”）
board wages(发放的“伙食费”）
但一般国外将膳宿放到一起称　accommodation expenses膳宿费

如果指的是发放或收入，可以称为WAGES，如果是某人的预算的支出费用，则不可，应为meal 或 board expenses 或 allowances

I think that "board expenses" is the only answer for this question.

meal allowance or living expenses

board expenses