Try it in tacos, chili, and spaghetti sauce. Seitan is a delicious wheat-gluten protein. Its hearty texture makes it ideal for slicing, baking, frying, stewing, etc. Tempeh is a chewy, meatlike food made from fermented soybeans. It has a nutty, tangy taste and can be used in almost any recipe that calls for meat.
Many recipes call for eggs because of their binding and leavening properties.
Egg replacers, available in health food stores and some supermarkets, work just as well as the real thing. Also, try substituting one heaping tablespoon of soy flour or cornstarch plus two tablespoons of water for each egg in a baked product. Or try one ounce of mashed tofu to replace each egg in recipes. Take plenty of vegetarian snacks like granola bars and raw fruits and vegetables to munch on car trips. If you're traveling by air, most airlines will provide you with a vegetarian or vegan option that will put standard airline fare to shame.