Forgive me for sounding argumentative, but why would she need to bother her priest with this?
Cassia, check out something called tempeh;
From the Wiki article on Tempeh:
"It originated in today's Indonesia, and is especially popular on the island of Java, where it is a staple source of protein. Like tofu, tempeh is made from soybeans, but it is a whole soybean product with different nutritional characteristics and textural qualities. Tempeh's fermentation process and its retention of the whole bean give it a higher content of protein, dietary fiber, and vitamins. It has a firm texture and an earthy flavor which becomes more pronounced as it ages. Because of its nutritional value, tempeh is used worldwide in vegetarian cuisine, where it is used as a meat analogue."
There are many, many ways to cook it, so don't worry about not liking it or getting bored with it. AFAIK, it's available in most health food stores.