The military is only allowed $7 per meal.
Re the $11.06 per day cost ... that may be for two meals. The three people I know who received meals on wheels all got two meals a day. I know (from fundraising efforts) that the MOW organization that served my MIL had a paid head cook, and volunteer drivers received a modest per mile reimbursement for gas. My MIL paid weekly for her meals - I think about $6/day. I think there’s a sliding scale based on income.