Preheat broiler. Meanwhile, in a large skillet, heat butter over medium heat. Add ham and garlic; saute for 2 minutes. Add cauliflower, and cook just until crisp-tender. Combine cream and flour; stir into skillet, and blend well. Add salt, pepper and cayenne pepper. Cook and stir until thickened and bubbly; cook and stir 1 minute longer. , Pour into a 2-qt. baking dish. Sprinkle with cheese. Broil until lightly browned, 2-4 minutes. Sprinkle with parsley. Serve immediately.