Oishii Sushi Bar in Santee serves a dual Japanese-and-Thai menu from its Mast Boulevard location in the eastern commercial corridor near Mast Park, a 3,600-search-per-month recreation anchor for the neighborhood. The 10251 Mast Boulevard shopping center shares tenant traffic with training studios including Outliers Jiu Jitsu in the same Mast Blvd retail strip, drawing pre- and post-session diners to the sushi bar. The Japanese side of the menu features nigiri, sashimi, hand rolls, and specialty maki built at a 10-seat sushi counter, while the Thai kitchen produces coconut-milk curries, pad Thai, and a red-curry seafood bowl combining salmon, squid, shrimp, mussels, and scallops. Established in 2003, the restaurant has operated continuously on the Mast Blvd corridor for more than two decades. Sake and beer selections complement the evening menu, with retail bottle options available at nearby Mr. Liquor at 10227 Mast Boulevard for takeout pairing. The Thai seafood in red curry layers six proteins over jasmine rice in a coconut-chili broth fortified with lemongrass, galangal, and kaffir lime.