_Betty Crocker Picture Cookbook_, first edition
Now available in facsimile edition if you don't have a hand-me-down
And for Indian vegetarian, you can't beat _Lord Krishna's Cuisine, The Art of Indian Vegetarian Cooking_ by Yumuna Devi. I've had friends from India ask for recipes--it's comprehensive, exhaustive and excellent. But you won't find meat or garlic.
Best nostalgia vegetarian or the cookbook to use when carnivores come to dinner, _Tofu Cookery_ by Louise Hagler--lots of modern stuff, but you really can't beat substitutes for those old standbys grandma used to make like tofu pot pie (in lieu of chicken) and tofu barbeque.
Of course, I also love the Moosewoods and the Vegetarian Times, the Sunset Vegetarian has also gotten a good workout.