About Us Welcome to Bluefin Grill & Sushi! Chef Hoss is a US Olympic award winning chef, and the creative visionary behind Simi Valley’s popular restaurant Bluefin Grill & Sushi. Bluefin has been owned and operated since 2001. At Bluefin, you will taste incredible dishes from Thailand, Italy, Japan and the unforgettable traditional American cuisines. Bluefin also has an impressive Sushi Bar with the freshest ingredients around and very talented sushi chefs. Our vision is to provide as many options to his guests with 5 Star treatment, without the 5 Star prices. This is a family restaurant, so please come join us!