I have also experienced the weird meat craving, but my craving is actually for raw meat. A while ago I figured out how to safely prepare a blue steak (frozen, seared on all sides for a few seconds but 100% raw inside, plus you have to buy it fresh from a non-coloured meat source and freeze it immediately after purchasing it).
I slice it extremely thin, then dip it in ponzu sauce (raw tamari soy sauce + raw lemon juice).
I was feeling very weak, lethargic, and depressed for days. I craved blue steak with ponzu sauce. I made it, ate it, and enjoyed it tremendously. With each bite I felt better -- I had a weird drug like high as I ate it. After, I had tons of energy and my mood was awesome! The next day I craved it again, ate it again, and felt even better! The 3rd day, I did NOT crave it at all, but the energy & mood are still here!
I have taken all sorts of vitamins & supplements, but there seems to be some mystery ingredients or energies in certain foods which are not available from standard foods/supplements.
I read a book by a naturopath who claimed that raw or rare meat has certain electrical properties not found in other foods, and he claimed that your electrical or 'chi' state must be 'fed' this type of electrical energy-signature.