1Preheat oven to 350 degrees F (175 degrees C). Grease a baking sheet.
2Divide pizza dough into 4 equal parts. Roll each piece into a large oval on a lightly floured surface.
3Mix spinach, mushrooms, zucchini, cabbage, green bell pepper, fresh tomato, onion, sun-dried tomatoes, artichoke hearts, olives, garlic, and Italian seasoning in a large bowl. Season with salt and black pepper. Divide vegetable mixture over the center of each piece of dough, leaving about a 1-inch border of dough. Sprinkle about 1/4 cup mozzarella cheese and about 2 tablespoons Asiago cheese over vegetables
4Fold pizza dough in half to create a half-moon; pinch and seal the edges of each calzone. Transfer calzones to the prepared baking sheet. Cut small holes on the top of each to vent; brush tops with olive oil.
5Bake in the preheated oven until lightly browned, about 30 minutes. Sprinkle remaining mozzarella cheese and Asiago cheese evenly over each calzone and continue baking until cheese is melted and crust is golden brown, 5 to 10 minutes more. Serve with marinara sauce for dipping.
Footnotes
Cook's Note:
Use smooth marinara sauce for best results.
Tip
Aluminum foil helps keep food moist, ensures it cooks evenly, keeps leftovers fresh, and makes clean-up easy.