Have you yet to sign up for Taco Bell Rewards? Gain access to a $1 Build Your Own Cravings Box by signing up today for free! A specialty dish like a Chalupa Supreme, a traditional dish like a taco or bean burrito, a side dish, and a drink are included in these boxes, which are normally $5.99. To receive the prize, just download the Taco Bell app and register for Taco Bell Rewards.