One of the items I have added to his daily rations is a mash of soaked alfalfa cubes. While these can be fed dry, I think it's a little safer to soak them to prevent choking. I have been feeding about 2 pounds of dry cubes per day, and mixing it with an equal amount of water, letting it sit for a good 15-20 minutes, then hanging it up for the wolves (aka Louie).
The first time I fed Louie these soaked hay cubes, he turned up his nose, tried to dump the pan over, and stepped in them. But with a little perserverence, Louie has decided that he loves his cubes, and he REALLY looks forward to his evening snack of soaked alfalfa cubes. See? You can tell by his alfalfa mustache.