A Tex-Mex brand to its core, Taco Bell had to be strategic to successfully enter the chicken sandwich wars. The Crispy Chicken Sandwich Taco, and its spicy twin, were made with a thick, bready "taco shell" wrapped around a piece of fried chicken slathered in chipotle sauce, and went for only $1.49. Unfortunately, this limited-time item left the menus a few weeks later.