Americans waste 133 billion pounds of food annually, according to the U.S. Department of Agriculture. Curb food waste in your own household by adding scraps you'd normally toss into nutritious, delicious recipes.Some of parts of fruit and vegetables that are commonly thrown away actually taste nice and have a great amount of nutritional value. From the green shoots at the top of carrots to the central core of pineapples, a little preparation and imagination can turn these overlooked items into healthy treats.