They have a decent section if gf. Just make sure that you look closely that somebody didnt put anything there that shouldnt be. They have lables throughout too
Vons has a selection of gluten free items like Udi's bread, pizza, muffins, etc. in the frozen section. They have several choices of gluten free pasta, including one from their own "Eating Right" generic brand that tastes good and is reasonably priced. They have "gluten free" tags around the store under prices in the shelves for many items to help you find things.
Honestly, the gluten free community aren't taken care of by this store. The are few gluten free options in general and what exists the store refuses to give it its own section, let alone properly label. Gluten allergic people are an after thought to this store and it shows. Not really worth a shopping trip, tbh.
The best GF grocery store selection I have seen. aisle 17