How to Make Heavenly Bake Chicken Divan with Creamy Sauce

Ingredients

• 2 cups cooked chicken, shredded or diced (about 450g)
• 2 cups broccoli florets, blanched (about 150g)
• 2 tablespoons unsalted butter (30g)
• 2 tablespoons all-purpose flour (15g)
• 1 cup chicken broth (240ml)
• 1 cup heavy cream (240ml)
• 1 teaspoon Dijon mustard
• 1 teaspoon garlic powder
• Salt and pepper to taste
• 1 cup shredded cheddar cheese (about 115g)
• ½ cup breadcrumbs (about 60g)
• 2 tablespoons olive oil (30ml)
• ¼ cup grated Parmesan cheese (about 25g)