>Interesting. A friend of my daughters will be staying with us for 3 weeks and she is a vegan. What type of meat substitute works best with burritos?

It depends if she likes meat, but doesn't eat it for health/political reasons (me) or she doesn't like meat (my wife).

If she likes the taste of meat, Veggie ground round is very authentic http://www.yvesveggie.com/products_family.php?family_id=12&page=1&pIdName=Ground%20Round
otherwise I would just use beans.

The veggie burgers fall into that category too. The Good Burger, Veggie Authentic and Chicken Burger are reasonable imitations of animal flesh, but the Savory Veggie is full of vegetables, but good in its own way. http://www.yvesveggie.com/products_family.php?family_id=10&page=1&pIdName=Veggie%20Burgers

Veggie dogs are similar with the "Tofu Dog" being the most realistic.

Vegan, that is a tough lifestyle and very hard to do in health way. Your daughters friend may even be really serious and not eat honey.

My wife and I have always eaten dairy and eggs, but in the last few years have added fish to keep us healthy as we age. Our 2 year on daughter eats everything, and she can choose to be vegetarian or not when she is older.