i just steam it, then process it with a spoonful of fat free sour cream and a splash of skim milk (depending on what consistency you want)....salt and pepper to task...compeltely fat free, and tasty
if you want to add a tiny bit of richness, with not too much fat, try adding a little bit of yogurt butter (the brand me we like is Brumel & Brown, spelled something like that)
maybe throw in a couple roasted cloves of garlic, or onion, or whatever else
we also tried this with broccoli...came out pretty good, and the bright green color made it pretty intresting to look at
dont over steam either, because it will waterlog it