Sorry, this has nothing to do with calorie-counting...
Joyous, have you tried a non-pasta pasta bake with it? I'll do this for my family from time to time. Cut the cauliflower into bite sized pieces, rinse off. Place some spaghetti sauce in bottom of casserole (sized depending on how much you want to make). Then layer, in this order, cauliflower, sauce, shredded mozzerella cheese; repeat. Top with mozzarella cheese and also some shredded parmesan cheese. Bake at 350 about 40 minutes or until cauliflower is cooked through.
When I make mine, I brown about 3/4 pound mild italian sausage and add that to the spaghetti sauce. It seemed kinda bland without it, but then again I used store-bought spaghetti sauce and added nothing to it. The cauliflower makes a great replacement for traditional pasta. Using 1 head of cauliflower, 1 jar of sauce, 1 package of shredded mozz cheese, and 3/4 pounds of mild italian sausage this filled a 9x13 pan for me.