I rather like the looks of this recipe!
Cauliflower Mac and Cheese (serves 4 or more)
1 pound penne pasta
1 cup 2 percent or skim milk
1 pound shredded cheddar cheese
1/2 head cauliflower, cut into florets
1/4 cup parmesan cheese
1 tablespoon chopped parsley
salt and pepper to taste
Bring salted water to a boil and cook the pasta until al dente. In the meantime, cook the cauliflower until soft and transfer to a blender to puree.
In a medium-size pan, combine the pasta and hot cauliflower puree. Add the milk and cheese, and season with salt and pepper to taste.
Sprinkle with chopped parsley, and serve immediately while hot.