1 cup corn meal-4.5 cups water-.5 cups spinach puree
DId you put the spinach in with the polenta for some reason? Sounds like you will have overcooked spinach to me--are you following a recipe?
I agree with Maedl. Too late now, but I would have worked in the spinach when the polenta was near finished. You don't want it to be too watery. It should be spitting back at you.