Zuc's are a sort of settled thing for me at least, now the real save a buck recipes use cheaper cuts of meat such as organ meats as well as tougher portions of game animals such as deer thighs and game animals that are rarely eaten such as pike.
For me, if I had some tough old deer haunches, I'd look at them like Briskett and either BBQ them, or maybe pressure cook them.
Pike can be mixed with instant mashed potatoes and fried to make fishballs...which are yummy.
Organ meats like liver, kidney, brains, and hearts and tripe...I got nothing..seriously waaay outside of what I know how to cook.
My only thought would be to soak the liver or kidneys in buttermilk or vinegar and herbs as they do not have the cellular structure of cuts of meat.