Henry Hargreaves and Caitlin Levin had exactly that in mind when they created their Food Map series.
The Food Maps are a collection of country and continent maps that are made using ingredients to show those areas staple crops as reported in the National Geographic magazine.
The United States is made of corn, Italy tomatoes, India rendered in spices, New Zealand in kiwifruit, South America in citrus.
Keep in mind that the foods most commonly associated with a particular place aren't actually native to that spot. A majority of tomatoes, for example, come from South America, yet today they're an integral part of Italian cuisine. More...