Can't vouch for what's in it, but it has a memorable title:
A Man, a Can, a Plan : 50 Great Guy Meals Even You Can Make [Board book]
David Joachim

Along the 'cook once, freeze lots' theory, there is a big guide to cooking ahead and freezing that might appeal if he doesn't long to stand in the kitchen each and every night: "Frozen Assets".

If I was a single guy I would want to grill once a week with friends and beers, making a lot of assorted meats and sausages and slapping the remainder in the fridge for later.

And pass along to him your favorite recipes for simple roasts in oven or crock, these often do not show up in cookbooks because they are 'so simple', yet non-cooks do not have the slightest idea how easy it can be or what exactly to do so that one does not end up with a $19 piece of tough leather.