Taco Bell tested their Croissant Tacos in Toledo, OH as a possible follow up to the Waffle and Biscuit Tacos (this is before there was the naked egg taco). With the taco shell being a fluffy croissant, you could get these with egg and sausage or egg and bacon.
These Famous Burrito Bowls were tested Charlotte, North Carolina. These were essentially tortilla-less versions of your favorite burritos(7-layer bowl, Cheesy Potato Burrito bowl, Burrito Supreme Bowl). Each one used latin rice as a base and then beef, etc.