Originally Posted by milkdemcows
Would using frozen spinach for a spanakopita be much inferior to using fresh?
Nope - frozen spinach is just blanched and "wilted" - like you would have to do if you were using fresh (according to the Greek recipe I have). If you're going to get really fussy - try making your own phyllo, too!
I've tried using fresh spinach a couple of times ... didn't notice that it was any better than properly drained/wrung out frozen (I just squeezed the heck out of it in my hand). My experience has been that the cheese(s) make more of a difference than the spinach.