If we are exploring this route I don't see why we couldn't keep our ogre family fed on Bandits just like the Vamps (Black Goblins & other humanoid monsters also, since they won't be as picky as our ladies of the night)... I don't know why but I really dislike feeding them sheep (keep sheep as an option though + Boars, Bears & Wolves??)....
Fantasy:
Why not the ogres, for example? It would be cool if you had to supply Maghda and her little kids with meat. and just like the goblins, they plunder. Once a week they eat people and there would be a side room in the cave where you could plunder their remains. I could also imagine some quests where knights try to stop the man-eating family.
...
I think it's tempting to have them setup as guards keeping to western road clear of bandits if Bandits weren't so valuable as an ingredient for blood potions and Vamp WooHoo... we need more sources of human sacrifies