These remind me of Taiwan Beef Noodle House's (now known as Wang's Beef Noodle House) potstickers.
It normally comes with a side sauce which unfortunately is not pictured above.
Nonetheless, this is a pretty good side dish to order at Corner 23.
By the way, do they call them potstickers because they have a tendency to stick to pots?
Corner 23
4008 Cambie Street
Vancouver, BC
Tel: 604-879-8815