I keep a running list of spots to check out for all parts of LA. In the “Far East” section here are my highlights.
Heard Padua Pasta in Upland is excellent. Also in upland, for Indian food (never been but well reviewed) http://www.ashirwadtheblessingsupland.com/aboutus.aspx.
Of course in SGV, you can hit dim sum at Lunasia, Sea Harbor or Mamas Lus. And in Pomona, theres this Indonesian spot at a Badminton Club that is also high on my list of Eastern spots to check out https://www.yelp.com/biz/badminton-cross-court-cafe-pomona-2
Hope this helps, please review what you come up with if you can!