On a whim, I asked for a mushroom growing kit and a cheese making for Christmas, and I have to say the mushroom kit is pretty awesome (and probably a lot less work than making cheese, but I haven't tried that yet). I set it all up per the instructions, then mist it every day and voila! Once they get going they get big crazy fast. These are portabellos. The first harvest was 8 mushrooms, shown below. BBQ'ed them in a flavorful wine/balsamic marinade, yum yum yum.