I've had vegan "chicken" nuggets before. There IS a HUGE difference in texture and taste.
Vegan nuggets are not juicy or greasy. They are firm and slightly rubber like. They have no taste, unless you use dip with them.
They aren't BAD by any means, but they certainly are BORING.
I can understand her feelings about this. Her doctor may have put her on a vegan diet because of her medical conditions, and just got used to it. And for someone thats been 100% vegan for a long time, eating meat CAN make them sick.
I had a friend some years ago that was the exact opposite. He ate nothing but meat and the occasional french fries. But his diet was 90% meat based. I made some baked veggies marinated in Italian dressing I thought he'd like. He tried them and liked them, but ended up going to the doctor for a sick stomach.
Apparently he's been on a meat based diet so long, his system cannot tolerate vegetable matter, unless its french fries. And his doctor had him tested because of this, and found out he's become allergic to most vegetables......most notably the green ones.
It's weird what can happen to your body when you only feed it certain things for so long.