Right now in the Northeast, there is an array of spring/early summer greens-n-things such as choi's, arugula, spinach, turnip & radish tops and things such as green garlic & garlic scapes & bunching onions. Use them all in pesto!
Homemade pesto is easy to make! Especially when using homegrown basil and garlic. I made a big batch to include in my Italian feast holiday gift baskets! My friends and family raved are still raving about it!