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:
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: