You can usually find something like that in most grocery stores, and a lot of convenience stores. Any kind of veggieburger will do. Also, consider taking a look at Loma-Linda foods, they are all vegetarian products, I do believe. A little pricey for my tastes, but they have canned goods (like Fri-Chik) that are good forever and easy to leave in a desk drawer for emergencies. It's not a perfect solution, but it's better than going hungry. 