Four Cheese Mac and Cheese with Roasted Cauliflower

Name: Four Cheese Mac and Cheese with Roasted Cauliflower
Ingredients: 4 cups bite size cauliflower florets; 2 tablespoons light olive oil; 1 teaspoon Italian seasoning; 1/2 teaspoon garlic powder; For the Mac and Cheese:; 12 ounces elbow macaroni; 4 ounces 2% milk Mild Yellow Cheddar ,shredded; 4 ounces Cooper Sharp American ,shredded; 4 ounces Dubliner Cheese with Irish Stout ,shredded; 4 ounces Fontina cheese ,shredded; 2 tablespoons reduced fat butter; 2 tablespoons flour; 3 cups 2% milk; black pepper ,to taste