My co worker who just had a baby swore by PB&J :)
I make sandwiches and just heat the heck out of them to make them safe. I also like doing veggie wraps.
I'm not vegan, but I love the Happy Herbivore website and cookbooks. Her vegan ice cream (made with frozen banana, tastes just like soft serve) and "cookie dough" (rolled oats with peanut butter, cocoa, and maple syrup) are to die for.
Mexican food is healthy too...some chicken, cheese, whatever random veggies...