I run about $1000 a month for groceries for a family of 4 (youngest is 13) and 5 daycare kids.
I serve homemade foods as much as possible, definitely whole grain and healthier choices. The average dc meal consists of an appetizer of soup or salad, main course of grains, veggies, and meat, and a fruit for dessert. (Only on ocassion will my dc kids or my own be served hot dogs, KD, or chicken nugget type foods).