The following is the e-mail response from Longhorn Steakhouse when asked which of their menu items are vegan:
Thank you for visiting longhornsteakhouse.com.
We appreciate the challenges you face in honoring your personal convictions. Veganism and vegetarianism take many forms. A few of our menu items can be adjusted to accommodate a vegan or vegetarian diet, but none wholly meet the criteria. Our current nutritional database does not include information to the level of specific detail you require. We would suggest you consult a manager when you visit and they will do everything possible to meet your needs.
If Guest Relations can be of further assistance, please write us again through our website at www.longhornsteakhouse.com. We look forward to a future opportunity to serve you in our restaurants.