Calzones

Ingredients

• 2 tablespoons olive oil
• 1/2 large onion, minced
• 1 leek, diced fine
• 3-4 cloves fresh garlic
• 1 pound ground beef
• 1 cup pizza sauce, divided
• 1 16 ounce container whole milk ricotta
• 1 8 ounce package shredded mozzarella
• 8 thin slices of pepperoni
• 4-5 large basil leaves, rough chopped
• 4 tablespoons milk
• 1 16 ounce refrigerated, ready to bake pizza dough
• salt, for sprinkling on top of dough
• 1 pint fresh white mushrooms, diced small
• 2 tablespoons butter