Based on a tip from a high placed informant (a discerning HK native), I headed over to the recently opened Yaya Restaurant in West Covina's Hong Kong Plaza. (Am I the only who saw the Yaya sign and immediately thought 'Humbert Humbert"?) It was recommended as being very good Sichuan fare and they do have a large range of Sichuan items on the menu. One thing that caught my eye was the crispy sweet potato cake. Now as most of you know, the English language description of a dish at an authentic Chinese restaurant may not completely prepare you for what you receive. This was certainly the case here, as the cakes resembled small crab cakes with a crispy bread crumb crust. Inside, the sweet potato filling with smooth and almost custard like. My fish dish was good, too. Street address is 979 S. Glendora Ave. And incidentially, there's something going on inside the market, as a new eatery is being readied. I wish I could read Chinese as all the signage is in Chinese, but it looks to me like another branch of Yum Cha Cafe is going to open up.