Creamy Spinach Chicken Casserole Recipe

Name: Creamy Spinach Chicken Casserole Recipe
Cuisine: European, Mediterranean
Ingredients: 2 large boneless skinless chicken breasts, cut horizontally; 8 oz cream cheese, softened; 2 cup spinach, rinsed; 2 tablespoons olive oil, divided; 4 oz Mozzarella cheese, shredded; 3 cloves garlic, minced; 1/2 teaspoon red pepper flakes, optional; 1/2 teaspoon salt; 1/2 teaspoon pepper; 1/2 teaspoon Italian seasoning, optional