Wow! An Italian Fatty (no offense to my tribe, of course)! That's a brilliant idea. Why didn't I think of that?!
I think I might use pepperonata as a filling. Basically, red and yellow peppers and onions sauteed in EVOO and cooked-down with a bit of canned tomatoes, red pepper flakes, rosemary, garlic, vinegar and S&P. I might also toss in some oil-cured black olives for an added kick.
Again, this is a brilliant twist on a Q classic. I hadn't got my mind beyond Jimmy Dean till now.
Sal