Lotus Food, a large Asian grocery store in the Strip District, is, offering online orders for pick-up, like other Asian stores in the area.
Customers first create an account and login; the store offers a Chinese or English version of the site. You then browse the site and add items to the cart. Upon checkout you will be prompted to enter your cell phone. After paying you will then receive notification when the order is ready to pick up. Please note that some items may be on back order due to high customer demand.
Lotus does typically offer delivery, but that is currently unavailable due to the current public health crisis.