Taco Bell once tested a taco-shaped biscuit shell back in 2014 and looks to be revisiting that same vibe with a new Grilled Cheese Biscuit breakfast item that's being exclusively tested in Knoxville, Tennessee.

Those in the test market will get to experience a warm buttermilk biscuit drenched in melty cheddar and mozzarella, with a delectable highlight of pepper jack cheese veiling the outer. 

The Grilled Cheese Biscuit is available as a test in Knoxville, Tennessee à la carte for $1.99 or with sausage in the center for $2.49.