I spend 50 a week on groceries and I eat like a king. that is an average of 2.38 a meal, that fifty also covers nonfood items as well as bulk such as rices, beans, legumes, etc. I cooked a beautiful french lentil/leek soup with vegetables in chicken stock Monday and Yesterday I cooked brown basmati rice in coconut milk and made a mango chicken from scratch.
two keys here is how to cut and how much you really need to eat