There isn't a gluten-free menu and nothing is marked. The head chef came out and walked me through the whole buffet. He was very friendly and knowledgeable about most things. Speaking from the glass half full perspective, there were quite a few food options for me, however, I had to rely on my memory and the chefs. Certain foods were also eliminated due to the possibility of cross-contamination.
When we arrived at the Market Buffet in Caesars, the Chef helped me by taking me around the buffet areas and explaining which items were GF. He also indicated that it is best to contact the chef/manager assigned to a specific area - Pizza, Salad etc. I recommend contacting the area chef/manager when dishing up your items. They even have GF dessert in a special area away from other non GF desserts. Eaten here a few times over 2 years and am always happy and never ill. Use good judgement in double checking if unsure about anything. I am super sensitive to gluten and have celiac.
Not worth it! The hamburgers at The Legends Club had breadcrumbs in it, despite saying it's GLUTEN FREE ON THE MENU!!