Shocking news: frozen spinach sucks compared to fresh spinach.
Okay, I'm not surprised. But I had the Trader Joe's "organic flash-frozen" kind left over from the e.coli scare, and wanted a green with dinner...it was okay, but it was just so...blah. I sauteed it like usual, and it didn't take long - and when it cooked up, it certainly looked like regular cooked spinach - but the texture was a bit spongy, and the taste just bland. Meh.