Which of the following is a signature item served with Texas Roadhouse entrées?

Cinnamon butter is a signature item at Texas Roadhouse, known for being served with their freshly baked bread. This signature item enhances the dining experience by providing a distinctive flavor that sets the restaurant apart from others. The combination of warm, soft bread with sweet, rich cinnamon butter has become a hallmark of the Texas Roadhouse experience, making it a memorable aspect for diners.

While coleslaw, gravy, and mashed potatoes may be served alongside certain entrees, they do not carry the same level of recognition as cinnamon butter. Coleslaw is often a side dish rather than a signature item, and while gravy is commonly associated with certain meats, it is not unique to the Texas Roadhouse. Similarly, mashed potatoes are a well-liked side but are found in many restaurants and do not represent the Texas Roadhouse identity in the same way that cinnamon butter does.