Preheat oven to 375°F. Line a baking sheet with parchment paper and set aside.
In a medium bowl, combine the cooked broccoli, ricotta, mozzarella, Parmesan, feta, olive oil, oregano, garlic powder, salt, and pepper. Stir to combine.
Divide the pizza dough into four pieces. On a lightly floured surface, roll each piece into a 6-inch circle.
Place 1/4 of the broccoli mixture in the middle of each dough circle. Fold the dough over to make a half-moon shape. Crimp the edges together with a fork to seal.
Place the calzones on the prepared baking sheet. Bake for 25-30 minutes, or until golden brown.
Serve hot.
Interesting Facts
Calzones originated in Naples, Italy, and are a popular street food.
Calzones can be filled with a variety of ingredients, including meats, vegetables, and cheeses.
The calzone was made popular in America by the Italian immigrants who settled in New York City in the late 19th century.