Vegetable protien is always incomplete, so you'll want to mix protein sources throughout the day. Wheat with nuts, for example. Adding eggz and dairy make it much easier, of course than those who go vegan. My wife was lacto ovo for a long time. We both read a book called Diet for a Small Planet. It's kind of a tree hugger/ new age kind of book, but it does a good job of giving protein profiles of a lot of non-meat foods.