Okay so I know that this picture does not do this yummy dish any justice!  But this is very tasty!!

Take a head of cauliflower and boil for 20 minutes.  Drain from water and place in pan.  Spread a 50/50 mixture of mayo and mustard atop the head of cauliflower.  Then sprinkle with some parm cheese.  Bake in oven for around 10-15 minutes at 350.  Heat just until top begins to brown and become crunchy!  enjoy!