And one lucky reader of Chocolate-Covered Katie (a.k.a. Chocolate Covered Vegan) has the chance to win an entire case (a $32 value) absolutely free. See this post for more details on the Jocolat giveaway.
I also enjoy The Simple Bar, which has a very different texture from Larabars; perfect for those days when something grainy and nutty is needed. And, they have less calories than Larabars and pack 16 grams of protein. The Simple Bar comes in 6 varieties, all of which are vegan. See the lovely fan display below; unfortunately, I don't know of any current giveaways.
However, another excellent snack option is to make your own vegan granola. I really like the custom-made granola from MixMyGranola.com -- a company run by three friends that uses locally-grown, mainly organic ingredients. You choose your base and then add your favorite ingredients. The organic granola and organic muesli bases are vegan (the other 2 have honey). Best of all, the website calculates the nutritional information of your custom made granola. It's not the cheapest ever -- the base is $4.95, then each ingredient adds to the cost, and finally shipping is a flat $5 -- but sometimes a splurge on a healthy snack is worth it (think how much you spend at Starbucks every day . . .).
Another similar option for make-your-own cereal is Me and Goji. Note that the healthy hoops and golden granola bases are NOT vegan. The website also calculates the nutritional information of your custom made cereal. Check out the cereal I made. At $15, it seems really expensive . . . but it contains 15 servings . . . $1 a serving is less than Larabars!