This recipe is excellent for several reasons. You can make it with baby spinach from your own garden, or with the full-grown spinach you can buy at the grocery store all winter long. It's a great compromise for those who love the taste of spinach, but not the texture. It's far cheaper than basil for making pesto. And last, it's a great way to fool your kids into eating their veggies: "No, Johnny, it's not a vegetable-- it's pasta!" (Not that I would know this from experience-- you'll have to ask Elizabeth if this worked for her)
Plus, if you want to continue on the Italian food theme, look how pretty the ingredients are: