I guess here's another idea for a more serious option.
A Mad Max future where a couple enter a settlement. They stand out because they are dressed normally while everyone else looks like something from Mad Max, because they've been hiding out in a bunker until now. But with their food finally running out, they've been forced to leave. They try to buy food from a merchant in this settlement (they have pigs, chickens, and other normal-looking food), but their paper money is worthless. There is some trouble communicating, but he makes it clear he wants the man's wife or girlfriend. Initially they think he means just for a night, which given their hunger, they actually consider. Eventually it dawns on them they he means permanently. They are reluctant, but they are both starving, and they reason that if she married the merchant, she would at least be kept fed since this guy obviously is able to get food, and hopefully the merchant would give the guy plenty of food in return. That is indeed the merchant's bargain, and he helps the guy load up his SUV with as much as will fit in there. The two say their goodbyes and the guy gets in his SUV and heads back the direction they came out of. As soon as he is gone, the merchant motions for the woman to disrobe, which she reluctantly does. The merchant than checks her out thoroughly, and depending on where you want to go with it, you can either show the prep and everything leading up to her fate, or do a time skip, with one of a few different outcomes.
1) Whole Roast - Whether you show the actual cooking or not, that spit-roasting rig you have ends up with her in it, over some coals (you could maybe paint some rocks or something to make them look like burned down coals), with the merchant selling cuts right off of her to other travelers and/or members of the settlement.
2) Hanging Meat - Some time later, the woman is strung up like a gutted pig, for sale herself, whole or in parts.
3) Cuts of Meat - Some familiar looking legs, arms, etc. are now stocking the meat shop.