Cauliflower "Mac" and Cheese Casserole Recipe | Food Network UK

Ingredients

• Kosher salt, as needed, plus 1/2 teaspoon
• 1 large head cauliflower, cut into small florets
• Vegetable oil spray
• 1 cup heavy cream
• 2 oz cream cheese, cut into small pieces
• 1 1/2 teaspoons Dijon mustard
• 1 1/2 cups shredded sharp Cheddar, plus 1/2 cup for topping the casserole
• 1/4 teaspoon freshly ground black pepper
• 1/8 teaspoon garlic powder