[Costco] Mussels - 5 lb for 7.99 @ Costco East
Edit: Fresh, not frozen.
This was at Mississauga Heartland Costco, not sure if it is at other Costcos.
Edit: Confirmed in Moncton and Ottawa
For comparison, I went to Loblaws and they had similar sized mussles $0.66 / 100g. A 5lb amount would cost $14.97.