There are 1000's of Nepalese in LA (probably around 25,000 since last 5-7 years as the number increased heavily  due to the Asylum, DV folks and their family members). There isn't any Nepalese grocery but you get althose at the  Indian Store. You can find Nepali community every where such as in Alhambra, Artesia, Anaheim, Van Nuys, Torrance, Culver City and so on !!!