For nutrition bars: larabars, cliff bars, some luna bars, and Kind bars are vegan; or make your own if you have access to a kitchen. I always refer people to this energy bar blueprint for making your own: http://www.nomeatathlete.com/homemad...gy-bar-recipe/
Bread: I second what dropscone said about making your own bread. It is way cheaper and you can make two loaves at a time and freeze what you aren't using for the time being. After a few times of making it yourself it becomes second nature. If you don't have access to a kitchen, I know of these brands that are vegan: Food For Life, Ezekiel (they also make english muffins and tortillas), and Rudy's bread (this company also sells buns and english muffins). Whole Foods and Health stores often have tortillas, buns, and other types of breads that are vegan. Thomas Bagels have several types of bagels that are vegan. I think there are a few Sara's breads that are vegan. The thing you have to watch with commercial breads are the fillers that may or may not be vegan, such as ingredients like L Cysteine or vitamin D3 or sugar or honey.
Can't help much with cheese. Daiya is the only commercial vegan cheese I buy and it is only a rare treat. I am a nutritional yeast kind of vegan lol. I make my own nut based cheese and cheese sauce using tofu, sweet potato, almonds, almond milk etc. Once in a very great while I have used Tofutti Cream cheese. Here is a list of commercial vegan cheeses in the U.S.: http://www.vegan-nutritionista.com/vegan-cheese.html
(The Vegan Store online and Vegan Essentials online both have lots of commercial vegan cheese products for sale)
Microwavable meals/easy to make stuff:
(I like their hummus mix, falafel patty mix, and chili mix; many of their products are vegan/vegetarian but not all)
(many of their products are vegan but not all)
And if you can find these: http://www.amazon.com/Food-Merchants.../dp/B000LKYX9S
They go well sliced and fried or microwaved and add some of Amy's canned vegetarian baked beans to go over it, maybe some steamed broccoli on the side.