Brussel Sprouts..

I like brussel sprouts... in fact i LOVE brussel sprouts. But for some reason.. every time i cook them.. they don't taste the same as they do in a restaurant. I first tried the sprouts about a month ago at an all you can eat buffet place. I know, i know, why on earth would you go to a place like that with so many temptations? I was good.. I had salad with grilled chicken, then I chose brussel sprouts afterwards and they were so yummy.

So, I go to the grocery store and buy some. I washed them, then I put them into a sauce pan with water and boiled them for about 10 minutes. I drained the water and sat down to eat and I bit into one and it wasn't to bad.. but the second and third ones were just plain yuck-o! The restaurant didn't put any seasoning or butter on them.. What did I do wrong?