Remove leaves, trim base from medium head of cauliflower.
Precook whole head in salted water 10-15 minutes.  Drain.
Place in ungreased shallow baking pan. Sprinkle with salt.  Combine ½ cup
mayonnaise and 2 t. prepared mustard; spread over cauliflower.  Top with ¾ cup shredded sharp cheese.  Bake at 375 degrees for about 10 minutes.