This dish is also beautiful baked in individual ramekins. Prep: 20 minutes, Cook: 9 minutes, Bake: 20 minutes.
Preheat oven to 450º. Melt butter in a large skillet over medium-high heat; add cauliflower, and sauté 4 minutes. Add fennel slices, and sauté 4 to 5 minutes or until tender. Remove from heat. Sprinkle with flour, salt, and nutmeg; add fennel fronds, and lightly toss together.
Spoon into a 2-quart gratin or baking dish. Pour cream over mixture. Sprinkle with remaining ingredients.
Bake at 450º for 20 minutes or until top is browned and crispy.
GREAT flavors! Easy to make - everyone loved it!