Here are two books that I read:
Animal, Vegetable, Miracle by Barbara Kingsolver
I thought this book took a seemingly boring subject and made it incredibly charming and really enjoyable. I'm sure part of the reason I liked it so much is because I've long dreamed of a simple life filled with delicious food and a huge garden. It gave me a lot to think about, especially in terms of eating locally. And Barbara Kingsolver is a great author anyway.
The Omnivore's Dilemma by Michael Pollan
I loved how informative this book felt. He really went to great lengths to dive into the various food worlds. It especially caused me to consider the ramifications of how we choose to eat, and a better awareness of where food is coming from. I would still like to read his other book, In Defense of Food (which I think is kind of a follow-up to The Omnivore's Dilemma)