I really think the whole vegan thing is disgusting and impractical due to the lack of protein and other vitamins and minerals that need to be received from meat. I have a liberal-leftist cousin who recently graduated(got indoctrinated and brainwashed) from college and at her graduation she served nothing but vegan food because our family never serves the stuff, oh I meant to say crap, she wants to eat at our parties. Boy, she’s in for a world of hurt this year, seeing how my family gets Thanksgiving, I’m loading everything with meat, quite possibly the dessert if I can find a way. ;)
While I’m not a fan of the political vegans, there are people who survive as adults on vegan meals, there are TONS of substitutes for meat and dairy products now, and even meat-eaters like myself take vitamins to supplement our requirements.
Also, there are people called vegetarians who eat dairy and eggs and you would NOT have to eat meat to get the proteins and other nutrients you can get from dairy and eggs.
Again, I don’t like a lot of the radical leftist vegan types but I think it would be wrong to totally exclude her from the menu. Would you exclude a Jew by putting pork in everything or someone with food allergies with whatever made them react? Some people are against cruelty and exploitation of animals and though I think it is carried to an absurd extreme, I don’t think it’s a particularly evil ideology either (if separated from the leftist garbage.) Keep in mind that the Jainists of India, at least the most devout, are themselves vegan or vegetarian, so it need not be political.
If she's vegan, all you have to do is make sure there's milk or eggs in the desserts.
If she’s vegan, just dairy is enough. Cheesecake, anyone? Spice cake with cream cheese frosting? Apple pie made with sour cream? Yum :-)