Definitely get some of her recipes and make those. I'm vege, too, and I would have no idea how to cook meat, but maybe she can share some of her "easier" recipes for you to cook for them. I'm sure if you're making food her family is familiar with they will appreciate it SO much.
A side note: I'm pg and most of my friends are meat eaters. I know that there will be lots of people willing to bring a meal for my family after my baby arrives, but it's kind of scary when meat eaters try to cook vege. I'll probably end up with a lot of mac and cheese! However, it's the thought that counts.