I'm sorry, I don't have information on the nutritional facts for a specific "sombrero fish burrito" as it likely varies depending on the ingredients and preparation method used by the specific restaurant or vendor.
However, in general, fish burritos can be a nutritious option as they typically include ingredients such as fish, rice, beans, and vegetables. Fish is a good source of lean protein and omega-3 fatty acids, which can promote heart health. Rice and beans are also nutritious, as they are good sources of carbohydrates and provide a range of vitamins and minerals. Vegetables in fish burrito can add dietary fibers, vitamins and minerals.
It's best to check the nutritional information from the restaurant or vendor if it's available, or ask the preparation method and ingredients used.