Pesto makes everything better (am.i.right?)  But here's the deal: Jarred pesto is almost always a load of C.R.A.P.  Take a look at the ingredient list, and you'll often find highly processed, nutrient deplete oils (i.e. sunflower oil, soybean oil), and an interesting collection of preservatives.  The good news is, DIY pesto is crazy easy to make, and actually tastes wayyyy better than store-bought wannabes (like, not even in the same ballpark).  Plus, by making your own, that puts you back in the driver's seat and in control of your health and what goes into your body.