Some of you may remember my pancreas and brains cooking blunder.

 From my recent readings, it seems that organ meats were prized by our
Paleolithic ancestors and made up a large part of their diet.  So I am still
interested in perusing organ meats as part of my paleo cuisine.  I'm pretty
good at cooking liver: sauteed with onions, garlic and rosemary.

I would appreciate some personal favorites and how you prepare them.  Do not
point me to the paleo archives, been there.  I would like some personal
suggestions.

BTW: Are heart and tongue that different from muscle meats to warrant
classification as organ meats?