Sonic

Sonic is a favorite fast food place among native Texans.  They have an allergen menu online that shows which foods have gluten.  The good news about Sonic is that most of their menu items are gluten free.  You can order a burger or a hot dog without the bun, and most of their beverages or ice cream treats are GF.  Their fries and tots contain no gluten ingredients, but you should always check about the fryers and cross contamination at a fast food restaurant.  I recommend their slushes, blended floats, and cherry limeade.  I have uploaded pictures of the new sweet potato tater tots, American hot dog, blended root beer float, and M&M blast.

They have many locations around San Antonio.