As more people adopt gluten-free diets, many national restaurant chains and fast food establishments are expanding their gluten-free offerings. Popular chains like Chick-fil-A, In-N-Out Burger, Chipotle, Outback Steakhouse, Olive Garden, Taco Bell, and P.F. Chang's now provide a variety of gluten-free options, ranging from bunless burgers and gluten-free buns to dedicated gluten-free menus, catering to customers with celiac disease or gluten sensitivities.