The Cheese Factory Restaurant Cookbook – very good recipes some healthy some not.

Rachael Ray’s Veggie cookbook (she calls for chicken broth though?)

Vegetarian Pasta by Sarah Maxwell

The New Vegetarian Epicure-by Anna Thomas

Vegetarian Cooking for Dummies is a good starting point to. Helps you swap out items and understand nutrition.

The Vegetarian Grill-Andrea Chesman

The Winter Vegetarian-Darra Goldstein.
References :
http://www.cookingvegetarian.com/Wisconsin_Dells_Restaurants/Cookbook.html

Deborah Madison! She’s amazng, they just re-released her book Vegetarian Cooking For Everyone..

Here’s a review:
http://www.gourmet.com/magazine/2000s/2008/08/cookbookreview_vegetariancooking
References :

i dont use cookbooks. But there’s one that many people I know love.

It’s called "Veganomicon" by Isa Chandra Moskowitz
References :

Since you like southwest/Mexican I thought I would post the link to this website. They have a lot of great vegetarian chili recipes
http://www.chili-everyway.com/vegetarian-chili-recipe.html

I also like some of their wonderful side dishes like the southwest vegetable salad and the grilled vegetable recipe with the 9 spice rub
http://www.chili-everyway.com/side-dishes.html

Enjoy these wonderful and great tasting recipes
References :
http://www.chili-everyway.com/index.html