I think that Indian and Thai food are great for vegetarians. Because these cuisines are so packed with flavor, you don't miss the meat. Some examples of Indian dishes that you can google are: 'Palak Paneer (spinach with Indian cheese), cauliflower and potato curry, samosas (patties filled with potatoes, they are YUM). Some Thai: Veggie pad Thai, vegetables with pineapples in a sweet sour sauce. All of these are fairly easy to make once you have the ingredients. I'm not vegetarian, but find potato recipes very satisfying. If you don't feel like getting too many ingredients, some other ideas are: Sweet potato french fries (cut, add olive oil, salt/pepper, bake or fry), brown rice with crispy fried tofu, and best and easiest of all PIZZA! I make mine at home and top it with tons of veggies and low fat cheese.
I had a look at Amazon.com and thy have 6000+ books just waiting for you. The top rated ones were" “Easy Vegetarian Recipes” by Instructables Authors; “Fresh & Fast Vegetarian: Recipes That Make a Meal” by Marie Simmons; “33 Delicious and Nutritious Main Entree Vegetarian Recipes (The Ultimate Guide to Vegetarian Cooking)” by Shelley Lynne; “1,000 Vegetarian Recipes” by Carol Gelles; “Top 30 Easy Vegetarian Slow Cooker Recipes for Busy Women: Set It and Forget It (First Vegetarian Recipes Cookbook” by Sarah Jessica Cook.
A lot of recipes that use meat you can substitute beans, sauteed eggplant, portobello mushrooms, and of course extra firm tofu. So try Chili, spaghetti, chicken soup, stuffed peppers, and stuff like that but don't use meat use a substitute. season it like they tell you to do the meat and cook it like they say do the meat.