Stuffed portabella mushrooms that I actually like

Don't hate me.  I have just never been a fan of those huge meaty mushrooms, and certainly not as a substitute for actual meat.  Still, I have wanted to like them, so I continue to experiment.  I like them much better when they've been chopped up into something, but that sort of defeats the purpose, doesn't it?

Finally, I found this stuffed recipe that I really like, thanks to Hannaford's Fresh magazine.  A lot of the stuffing is actually taken up with additional mushrooms.  That's not cannibalism, is it?