From January 2024 recommendation by Vanderbilt University Celiac Clinic:
Mercado opened in November, 2023 as a sister restaurant to Butchertown Hall. They are located in Wedgewood Houston and offer Mexican cuisine with a focus on baja-style fish tacos and spicy aguachiles. They also have a rooftop oyster bar called Ramones.
The majority of the Mercado menu is inherently gluten-free and many items can be made gluten-free easily. Staff is appropriately trained to handle such accommodations.
— Very