How to Make It
Heat oven to 425º F. Sprinkle a rimmed baking sheet with the cornmeal. Shape the dough into a 14-inch circle, using this method, and place on the prepared baking sheet.
Brush the dough with 1 tablespoon of the oil and bake until puffed and golden, 15 to 20 minutes.
Meanwhile, heat the remaining tablespoon of oil in a large skillet over medium-high heat. Add the sausage and cook, breaking it up with a spoon, until no longer pink, 4 to 5 minutes. Add the spinach and ¼ teaspoon each salt and pepper and cook, tossing, for 1 minute.
Top the partially cooked dough with the sausage mixture and cheese. Bake until the crust is crisp and the cheese has melted, 12 to 15 minutes.