Since street food is so cheap, basically there is no need to cook your own food, however, you may expect week's worth of groceries cost between 25 - 35 USD. (mindthetravel.com)
High child care and grocery costs keep it from being the best. (gobankingrates.com)
I eat wheat still (to help cut down on gluten - free grocery costs), but have a separate toaster and cutting board. (home.allergicchild.com)