Karin's Veggie Calzones

Name: Karin's Veggie Calzones
Prep time: 45 min
Cook time: 35 min
Total time: 1 h 20 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 pound prepared pizza dough; ⅓ cup chopped fresh spinach; ⅓ cup sliced fresh mushrooms; ⅓ cup sliced zucchini; ⅓ cup chopped cabbage; ⅓ cup chopped green bell pepper; ⅓ cup seeded and sliced tomato; ⅓ cup chopped onion; ⅓ cup chopped sun-dried tomatoes; ⅓ cup artichoke hearts, drained and chopped; ⅓ cup sliced black olives; 3 cloves garlic, minced; 2 teaspoons Italian seasoning; 1 pinch salt and ground black pepper to taste; 1 ½ cups shredded mozzarella cheese, divided; ½ cup grated Asiago cheese, divided; 3 tablespoons olive oil; 1 cup marinara sauce for dipping