Easy 3 Cheese Calzone with Pepperoni and Mushrooms

Name: Easy 3 Cheese Calzone with Pepperoni and Mushrooms
Prep time: 25 min
Cook time: 15 min
Total time: 40 min
Cuisine: Italian, Mediterranean, European
Ingredients: 1.5 cups Whole Milk Ricotta Cheese; 1/2 cup Parmesan (Grated); 1/2 tsp Salt; 1/2 tsp Black Pepper; 1/4 tsp Red Pepper Flakes (Add more or less depending on spice preference); 1/4 tsp Dried Oregano; 1/4 cup Fresh Basil (Chopped); 16 oz Fresh Pizza Dough (I used Trader Joes (plain or garlic & herb)); 4 oz Low Moisture Mozzarella (freshly grated); 3 oz Pepperoni (optional ); 4 oz Cooked Sliced Mushrooms (optional); 1 Egg (beaten ); 1 tbsp Flour (more as needed to roll out dough); 1 cup Marinara Sauce (to serve)