This is not a new recipe, it was posted by pearshape a few years ago:
Creamy White Bean Pesto Soup with Roasted Red Pepper and Spinach
I love this soup & it's got so much good-for-you spinach in it! This is a great way to eat a lot of spinach if you don't care for eating it on it's own. I am not a huge spinach fan, although it has grown on me since going on SB.
Spinach puree works well mixed into hamburgers for extra nutrients. Not recommended in turkey burgers, they come out neon green. I also add it to pizza and sandwiches.