Mercy For Animals has a free, beautifully-written Vegetarian Starter Guide (it's actually vegan). The nutrition part of the guide begins on page 7. It's free to download: http://www.mercyforanimals.org/files/VSG.pdf
“Under the twinkling trees was a table covered with Guatemalan fabric, roses in juice jars, wax rose candles from Tijuana and plates of food — Weetzie's Vegetable Love-Rice, My Secret Agent Lover Man's guacamole, Dirk's homemade pizza, Duck's fig and berry salad and Surfer Surprise Protein Punch, Brandy-Lynn's pink macaroni, Coyote's cornmeal cakes, Ping's mushu plum crepes and Valentine's Jamaican plantain pie."
from Witch Baby, Francesca Lia Block, 1991