Light and Easy Cauliflower Gratin

Bahan-bahan (4 porsi)

• 1 medium head cauliflower (cut into small florets (about 5 cups))
• 1/4 cup half and half cream
• 1/4 tsp kosher salt
• fresh cracked black pepper (to taste)
• pinch nutmeg
• 2 oz shredded light Havarti
• 1 tbsp bread crumbs
• baking spray