Adapted from the Louisiana Sweet Potato commission, this recipe is packed with healthy ingredients. A cream soup with no cream, no butter; just flat out good for you. I used King Arthur's "white" whole wheat flour to pack in a bit more nutritional punch. My local Safeway is carrying this flour now. This colorful soup is very mild; if you want to kick it up with some heat, go right ahead. Mr. B does not like spicy; when he tried this soup he gave it two thumbs up. Note--I use bagged baby spinach and don't bother to remove the stems.