I agree call them, the one you go to. See if they sell them at that location
Call your local COSTCO, or order it on line.
I typed in spanacomita triangles Costco. I cooked on the second link and found it on Costco. I am not sure of the location or if they are in stock, but did see it on their website and they would probably be able to help when you call. It says Cuisine Adventures All Natural Spanakopita, 48 count. Item #440586. They look delishious and makes me want to try them. I hope this helps you!
Call them and ask.
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