While Golden West does mark GF on their main menu, they still have a specific gluten free menu that you need to ask for. That's because the gluten free menu specifically calls out trace contaminations! Whereas the normal menu does not. The wait staff is well aware of this and will mention it if you do not.
They have gf and vegan menus. The gf menu warns of possible cross-contamination, so be sure to warn the server that you need to be gf. That said, they must be pretty careful! The waitperson usually asks you if you are allergic or gluten intolerant. Because in the past 10+ years we have eaten there I have only once wondered if my misery was their fault. We eat there several times a month. They serve breakfast all day.