No splinters under my fingernails, so I wouldn't be attempting this, but Bones' idea of the pull out pantry sounds good to me. Wonder if a cabinet guy could take that side of the ref cabinets apart and put it back together with maybe a metal slide out shelf unit in there instead of the wooden shelves. He would have to make a tall narrow single door instead of the two that are there now. Would also have to trim the inside of the fascia boards because every inch of width would be needed.
My guess is that I am just exercising my fingers because had there been a way to do it, I am sure Heartland would have. As it is, that is almost unusable wasted space. Just wishful thinking.