Cauliflower Pie

Ingredients

• 150 grams (1 ½ cups) cauliflower florets
• 1 ball of no-knead pizza dough, shaped and waiting on a floured peel
• 60 grams ( ¼ cup) béchamel (recipe follows)
• 10 grams (3 tablespoons) finely grated parmigiano-reggiano or grana padano cheese
• 50 grams (about 1 ¾ ounces) mozzarella, pulled into 5 clumps
• 15 grams (1 ½ tablespoons) coarsely chopped green olives
• ½ garlic clove, finely chopped
• generous pinch of chili flakes
• 10 grams (1 ½ tablespoons) fresh bread crumbs
• chopped fresh parsley for sprinkling
• béchamel sauce
• 486 grams (2 cups) whole milk
• 113 grams (1 stick) unsalted butter
• 18 grams (about 2 ¼ tablespoons) all-purpose flour
• 2 grams (1/4 teaspoon) fine sea salt
• 3 rasp grates of nutmeg or a pinch of ground nutmeg