Creamed spinach is one of my favs but I tend to just wing it.
I just take a bag of spinach and rinse it, then cram it into the biggest saucepan I have to wilt it down. I don't add water or anything, just what ever was clinging to the leaves from rinsing it. After it is wilted but still bright green, I mash it against the side of the pan and drain the green juice away.
Then I add what ever is handy in the fridge - a large spoonful of low fat creme fraiche, or even a spoonful of fat free philly cream cheese. You can add nutmeg, or sometimes I use garlic, or pan roasted pinenuts to add additional flavour.