• Marinara sauce (store-bought or homemade), optional
Preheat oven to 450 degrees.
To prepare filling: Heat olive oil in a large skillet over medium-high heat. Add the sausage and cook, breaking up lumps with the back of a wooden spoon, for 5 minutes or until no longer pink. Add onion; sauté 4 minutes or until softened. Add garlic; sauté 2 minutes. Add kale; sauté 8 minutes or until kale is tender. Stir in pepper and salt. Remove from heat; cool slightly. Add the mozzarella, ricotta, Parmesan and red pepper to the sausage mixture; stir well.
To assemble: Divide the pizza dough into 8 equal portions. Roll each portion into a 6-inch circle on a lightly floured surface. Spoon about 1/2 cup sausage and kale mixture onto half of each circle, leaving a 1/2-inch border. Fold dough over filling. Press edges together to seal. Beginning at one end and working toward the other, stretch sealed edge outward, pinching and rolling edge to form a rope. Transfer to baking sheet.