For just myself, last month I spent 200AUD(141EUR). The majority of what I eat is fruit and non-green vegetables due the aforementioned low price, but I mix a variety of more expensive vegetables, spices and a little meat into my meals for variety. I usually have either pasta, rice or potatoes with my largest meal of the day to flesh it out more, and I always have whole grains (which are mostly carbohydrates by the way) for breakfast.