Every summer, at the very least, I grow basil. There is just nothing like homemade pesto. I harvest it a few times during the season and each time make a big batch of pesto. I then freeze it in ice cube trays for quick and easy use in recipes all year long. This pesto recipe uses walnuts which are an excellent source of essential omega-3 fatty acids. If you don’t have basil growing in your garden, it’s easy to find large bunches of it at the store or your local farmer’s market this time of year.