You might think that there's a direct correlation between how much time you spend in the kitchen, and how good the fruits of your labors will be. In fact, it's entirely possible to prepare a delicious and healthy meal without cooking for hours. Susann Geiskopf-Hadler and Mindy Toomay provide recipes and tips in their cookbook 15-Minute Vegetarian.
The Cafe Flora Cookbook offers a delightful behind-the-scenes look at Cafe Flora's menu. This gourmet vegetarian restaurant has won numerous awards, including Best Brunch and Best Vegetarian Food, from Northwest Source, and Seattle Weekly Favorite Restaurants.
Amazon.com maintains a constantly-changing list of free vegetarian cookbooks, and once in a while, you can find some real gems. I recommend bookmarking this page and checking at least once a week. You don't need a Kindle to read them; there's a desktop app or you can just read them in the cloud.
Even though it's virtually tasteless, most people have very strong opinions about tofu - they either love it or hate it. With its huge variety of recipes, some of which highlight tofu while others hide it, Giant Book of Tofu Cooking tries to make everyone happy.
Whether you're a total beginner or an experienced cook, Mark Bittman's 1,000-page tome How to Cook Everything Vegetarian is stuffed with instructions, tips, recipes, and ideas that will inform and inspire you.
In some ways, the low-carb diet craze seems to be the opposite of vegetarianism, since fruits, vegetables, and grains are the foundation of a balanced vegetarian diet. It would be impossible to be a vegetarian and closely follow the Atkins diet plan, as it involves eating a lot animal products. So what can you do if you believe in the low-carb diet principles but don't eat meat? For starters, you can check out the cookbook Low-Carb Vegetarian.
Dina Cheney's beautifully photographed book aims to teach you how to make "vegetarian, delicious, and substantial" meals, the secret of which are power incredients, which provide a meaty flavor and/or texture.
The Mediterranean region is famous for its delicious and healthy, olive oil-based cuisine. With more than 500 recipes, Martha Rose Shulman's wonderful Mediterranean Harvest cookbook includes a huge variety of dishes from Spain, France, Italy, Greece, and the Middle East.
Geraldine Hartman offers a variety of recipes for hearty, homestyle dishes - the kind of food you think of as stick-to-your-ribs and down-home cooking.
If you're looking for something more than just the classic dishes and typical combinations, take a look at Yotam Ottolenghi's Plenty. This colorful cookbook offers some unique recipes using both everyday and unusual incredients.