Chicken Mozzarella Pasta

INGREDIENTS

• 1 pound Penne Or Rigatoni
• 2 Tablespoons Olive Oil, Plus More For Drizzling
• 2 whole Boneless, Skinless Chicken Breasts, Cut Into Small Bite-sized Pieces
• Salt And Pepper
• 1 whole Large Onion, Finely Diced
• 2 cloves Garlic, Minced
• 1 jar (25 Ounce) Good Quality Marinara Sauce
• 1/2 teaspoon Crushed Red Pepper Flakes (more To Taste)
• 1/2 cup Water
• 2 Tablespoons Minced Fresh Parsley
• 8 ounces, weight Fresh Mozzarella, Cut Into Medium Cubes
• 1/4 cup Parmesan Shavings
• Extra Parmesan, For Serving
• 12 whole Basil Leaves (chiffonade)