This is a great, healthy way to get your veggies and MUCH lower in fat than a traditional pesto. This is a great pantry-meal because it isn't dependent on the seasons and can be made in a snap at any time of the year. The sauce itself requires no cooking, and the food processor even does all the chopping for you.
This sauce is vegetarian as is, but could easily be made vegan by omitting the cheese.
Silken tofu is shelf-stable and can be found at asian groceries, specialty/health stores, and many regular grocery stores these days. It imparts no taste to the sauce, just a creamy decadent texture like the finest whole-milk ricotta. It can be your little secret!