Are you talking about eating at home or having to pack? At home we like veggie burgers on a bun, vegetable quesadillas, baked potato and veggies (required a little foresight to pop them in), what we call the "big salad" (anything you want on top!) and bean tacos are all favorites around here. Other than going out! For packing, sometimes I send them with a bunch of little things like yogurt, granola bars, nuts, dried fruits, hummus with chips, sliced red peppers. . .
HTH!