I am not trying to sway anyone to the Vegan Lifestyle, but everyone should read this interesting article in the New York Times. Paying a Price for Loving Red Meat
But if you are interested in going the Vegan direction check out this article by Mark Reinfeld (chef and vegan cookbook author) on How to Go Vegan (there is also a fun looking Vegan Shepherd’s Pie Recipe there too)
Marisa's Healthy Kitchen 