leskats, if you've got a microwave, potatoes come out fantastic in one, just like baking, only it's quicker. And it's prepared without any oils or anyhing.
I take a 400 gram sweet potato, poke holes all around it with a fork to allow moisture to escape, zap it on one side for 5 minutes (1000 watt microwave), turn it over, zap the other side for 5 minutes, then let it stand for 5 minutes before eating.
I'm addicted. Been eating them about 5 times a week now. It really helps to meet my potassium RDA. Plus at less than a dollar a pound they are a bargain. Yesterday they had a special at my local supermarket... .39 cents a pound. I bought a bunch.