Honestly, if you want to switch back to vegetarianism, go for it. You have to do what you want to do, and what you feel is right for your life. Plus, there are some tasty, tasty vegetarian recipes out there.
Also, I agree with the Chibs, Asian meat substitutes are wayyyy better than American, if you can get your hands on them. I used to work for a small company that was owned by a Jewish man who kept to his Kosher laws, who liked to feed us all each week. One of the restaurants that we would order from was a Chinese/Indian restaurant that served Vegan, Kosher meals. They made "chicken" and "seafood" dishes that had absolutely no real meat in them, using soy protein replacements. I won't say that you couldn't tell the difference between real chicken and their substitute, because you definitely could; but while you were noticing the lack of real chicken you also knew that using real chicken would have ruined the dish and that the substitute was the right ingredient.