Browsing through the neighborhood grocery store as I often do when in the need of food, I spotted a bright green cheese that looked like it had gone terribly wrong. Not wrong-right as in 4" mold hairs growing on it, but wrong-wrong as in toxic chemical reaction or an overdose of FD&C Green No. 3. Turns out it was pesto cheese. It's firm, easy to slice like cheddar, and really did taste like pesto. It would probably be great in a grilled cheese sandwich with tomato.