Try this simple logic with her:
Pigs are omnivores.
Cows are vegetarians and eating cow makes you a vegetarian once removed.
So eat beef one night per week.
If that fails, ask for this t-shirt for Christmas:
Klose 20 x 48, Stainless Performer, Smokey Joe Platinum, stainless hibachi, coal rotisserie, cinderblock hog cooker
Certified IMBAS MOINK Baller!