Eating organs is supposed to be very good for you. Eat the heart, eat the liver, eat the tongue. You just have to learn how to cook each one. Also, if you know any hunters, ask them what they don't normally save. I had a coworker who saved me the heart(most hunters toss this). It was delicious.
All of those are weird bits but Im willing to try if they actually are good lol. Can only do a small amount of tongue myself lol.
You might want to cook it longer. When I had deer heart I cooked it all day in the crock pot. Makes it much more tender and absorbs the flavor of the other ingredients.
Possibly it was incredibly rich.