I went downstairs to get something out of the pantry and saw an empty tortellini bag on the floor. At first glance, I thought Buster got into it, but the bag had a fairly small round hole chewed into it and that's just not his style. There was another tortellini bag, also empty, still sitting on the shelf. This one had the same hole in it.
Brian thinks it might be chipmunks, though how they are getting into that room is a mystery. So far, they've left the other food alone, but I should probably find a new home for those items. I think the chipmunks are going to be disappointed in how the tortellini hold up over the winter. They probably should've stuck to nuts.